The problem is that I need to know if it's version 3.5 SP 1. Environment.Version() only returns 2.0.50727.3053.
问题是我需要知道它的版本是3.5 SP 1。只返回2.0.50727.3053 Environment.Version()。
I found this solution, but I think it will take much more time than it's worth, so I'm looking for a simpler one. Is it possible?
我找到了这个解决方案，但是我认为它花费的时间比它的价值要多得多，所以我想找一个更简单的方法。是可能的吗?
19 个解决方案
#1
77
Something like this should do it. Just grab the value from the registry
像这样的东西应该可以。只需从注册表中获取值
For .NET 1-4:
为。net 1 - 4:
Framework is the highest installed version, SP is the service pack for that version.
框架是最高安装版本，SP是该版本的服务包。
RegistryKey installed_versions = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
string[] version_names = installed_versions.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
double Framework = Convert.ToDouble(version_names[version_names.Length - 1].Remove(0, 1), CultureInfo.InvariantCulture);
int SP = Convert.ToInt32(installed_versions.OpenSubKey(version_names[version_names.Length - 1]).GetValue("SP", 0));
For .NET 4.5+ (from official documentation):
net 4.5+(官方文件):
using System;
using Microsoft.Win32;
...
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true) {
Console.WriteLine("Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
...
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 461808) {
return "4.7.2 or later";
}
if (releaseKey >= 461308) {
return "4.7.1 or later";
}
if (releaseKey >= 460798) {
return "4.7 or later";
}
if (releaseKey >= 394802) {
return "4.6.2 or later";
}
if (releaseKey >= 394254) {
return "4.6.1 or later";
}
if (releaseKey >= 393295) {
return "4.6 or later";
}
if (releaseKey >= 393273) {
return "4.6 RC or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
#2
18
Not sure why nobody suggested following the official advice from Microsoft right here.
不知道为什么没有人建议遵循微软的官方建议。
This is the code they recommend. Sure it's ugly, but it works.
这是他们推荐的代码。它的确很丑，但很管用。
For .NET 1-4
private static void GetVersionFromRegistry()
{
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
}
}
}
}
}
}
}
For .NET 4.5 and later
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 393295) {
return "4.6 or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
if (ndpKey != null && ndpKey.GetValue("Release") != null) {
Console.WriteLine("Version: " + CheckFor45DotVersion((int) ndpKey.GetValue("Release")));
}
else {
Console.WriteLine("Version 4.5 or later is not detected.");
}
}
}
#3
9
Environment.Version() is giving the correct answer for a different question. The same version of the CLR is used in .NET 2.0, 3, and 3.5. I suppose you could check the GAC for libraries that were added in each of those subsequent releases.
version()给出了不同问题的正确答案。在。net 2.0、3和3.5中使用了相同的CLR版本。我想您可以检查GAC是否有在后续版本中添加的库。
#4
6
AFAIK there's no built in method in the framework that will allow you to do this. You could check this post for a suggestion on determining framework version by reading windows registry values.
在框架中没有内置的方法允许你这样做。您可以在这篇文章中查阅有关通过读取windows注册表值来确定框架版本的建议。
#5
6
An alternative method where no right to access the registry are needed, is to check for the existence of classes that are introduced in specific framework updates.
另一种不需要访问注册表的方法是检查在特定框架更新中引入的类是否存在。
private static bool Is46Installed()
{
// API changes in 4.6: https://github.com/Microsoft/dotnet/blob/master/releases/net46/dotnet46-api-changes.md
return Type.GetType("System.AppContext, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is461Installed()
{
// API changes in 4.6.1: https://github.com/Microsoft/dotnet/blob/master/releases/net461/dotnet461-api-changes.md
return Type.GetType("System.Data.SqlClient.SqlColumnEncryptionCngProvider, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is462Installed()
{
// API changes in 4.6.2: https://github.com/Microsoft/dotnet/blob/master/releases/net462/dotnet462-api-changes.md
return Type.GetType("System.Security.Cryptography.AesCng, System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is47Installed()
{
// API changes in 4.7: https://github.com/Microsoft/dotnet/blob/master/releases/net47/dotnet47-api-changes.md
return Type.GetType("System.Web.Caching.CacheInsertOptions, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", false) != null;
}
#6
4
It isn't easy any more to determine the current .NET version number. Microsoft has provided two different sample scripts depending on the .NET version that is being checked, but I don't like having two different C# scripts for this. So I tried to combine them into one, here's the script I created (and updated it for 4.7.1 framework):
现在确定当前的。net版本号已经不容易了。微软根据正在检查的。net版本提供了两个不同的示例脚本，但是我不喜欢为此使用两个不同的c#脚本。所以我尝试将它们合并为一个，这是我创建的脚本(并更新为4.7.1框架):
using System;
using Microsoft.Win32;
public class GetDotNetVersion
{
public static void Main()
{
string maxDotNetVersion = GetVersionFromRegistry();
if (String.Compare(maxDotNetVersion, "4.5") >= 0)
{
string v45Plus = GetDotNetVersion.Get45PlusFromRegistry();
if (v45Plus != "") maxDotNetVersion = v45Plus;
}
Console.WriteLine("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
}
private static string Get45PlusFromRegistry()
{
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey))
{
if (ndpKey != null && ndpKey.GetValue("Release") != null)
{
dotNetVersion = CheckFor45PlusVersion((int)ndpKey.GetValue("Release"));
Console.WriteLine(".NET Framework Version: " + dotNetVersion);
}
else
{
Console.WriteLine(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 461308) return "4.7.1 or later";
if (releaseKey >= 460798) return "4.7";
if (releaseKey >= 394802) return "4.6.2";
if (releaseKey >= 394254) return "4.6.1";
if (releaseKey >= 393295) return "4.6";
if ((releaseKey >= 379893)) return "4.5.2";
if ((releaseKey >= 378675)) return "4.5.1";
if ((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static string GetVersionFromRegistry()
{
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
{
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
{
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if (install == "")
{
//no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
} // class
On my machine it outputs:
在我的机器上它输出:
v2.0.50727 2.0.50727.4927 SP2
v3.0 3.0.30729.4926 SP2
v3.5 3.5.30729.4926 SP1
v4
Client 4.7.02558
Full 4.7.02558
v4.0
Client 4.0.0.0
.NET Framework Version: 4.7.1 or later
**** Maximum .NET version number found is: 4.7.1 or later ****net Framework版本:4.7.1或更高版本**** **最大版本号为:4.7.1或更高版本**** *
The only thing that needs to be maintained over time is the build number once a .NET version greater than 4.7.1 comes out - that can be done easily by modifying the function CheckFor45PlusVersion, you need to know the release key for the new version then you can add it. For example:
随着时间的推移，唯一需要维护的是当一个。net版本超过4.7.1时的构建号——通过修改函数CheckFor45PlusVersion可以很容易地做到这一点，您需要知道新版本的发布键，然后您可以添加它。例如:
if (releaseKey >= 461308) return "4.7.1 or later";
This release key is still the latest one and valid for the Fall Creators update of Windows 10. If you're still running other (older) Windows versions, there is another one as per this documentation from Microsoft:
这个释放键仍然是最新的，对于Windows 10的秋季创建者更新是有效的。如果您还在运行其他(旧的)Windows版本，那么根据微软的文档，还有另一个版本:
.NET Framework 4.7.1 installed on all other Windows OS versions 461310
.NET Framework 4.7.1安装在所有其他Windows OS版本461310上
So, if you need that as well, you'll have to add
所以，如果你也需要这个，你需要加上
if (releaseKey >= 461310) return "4.7.1 or later";
to the top of the function CheckFor45PlusVersion.
到函数的顶部，checkfor45plus。
Note: You don't need Visual Studio to be installed, not even PowerShell - you can use csc.exe to compile and run the script above, which I have described here.
注意:您不需要安装Visual Studio，甚至PowerShell——您可以使用csc。编译并运行上面的脚本的exe，我在这里描述了这一点。
Update: The question is about the .NET Framework, for the sake of completeness I'd like to mention how to query the version of .NET Core as well - compared with the above, that is easy: Open a command shell and type: dotnet --info Enter and it will list the .NET Core version number, the Windows version and the versions of each related runtime DLL as well. Sample output:
更新:问题是关于。net框架,为了完成我想提到如何查询版本的。net核心——与以上相比,这很简单:打开一个命令shell和类型:dotnet——信息输入和. net核心版本号列表,每个相关的Windows版本和版本运行时DLL。样例输出:
.NET Core SDK (reflecting any global.json):
Version: 2.1.300
Commit: adab45bf0c
Runtime Environment:
OS Name: Windows
OS Version: 10.0.15063
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.1.300\
Host (useful for support):
Version: 2.1.0
Commit: caa7b7e2ba
.NET Core SDKs installed:
1.1.9 [C:\Program Files\dotnet\sdk]
2.1.102 [C:\Program Files\dotnet\sdk]
...
2.1.300 [C:\Program Files\dotnet\sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.0 [C:\Program
Files\dotnet\shared\Microsoft.AspNetCore.All]
...
Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-downloadnet核心SDK(反映任何global.json):版本:2.1.300提交:adab45bf0c运行时环境:操作系统名称:Windows操作系统版本:10.0.15063 OS平台:Windows掉:win10-x64基本路径:C:\Program Files\dotnet\sdk\2.1.300\主机(用于支持):版本:2.1.0的提交:caa7b7e2ba。net核心SDK安装:1.1.9[C:\ Program Files \ dotnet \ SDK]2.1.102(C:\ Program Files \ dotnet \ SDK)……2.1.300 [C:\程序文件\dotnet\sdk] . net核心运行时已安装:Microsoft.AspNetCore。所有2.1.0(C:\ Program Files \ dotnet \ \ Microsoft.AspNetCore共享。所有]…Microsoft.NETCore。应用2.1.0(C:\ Program Files \ dotnet \ \ Microsoft.NETCore共享。安装额外的。net核心运行时或SDKs: https://aka.ms/dotnet下载
#7
2
Thank you for this post which was quite useful. I had to tweak it a little in order to check for framework 2.0 because the registry key cannot be converted straightaway to a double. Here is the code:
谢谢你的这篇非常有用的文章。为了检查framework 2.0，我不得不对它进行一些调整，因为注册表项不能直接转换为double。这是代码:
string[] version_names = rk.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5'
//we also need to take care of strings like v2.0.50727...
string sCurrent = version_names[version_names.Length - 1].Remove(0, 1);
if (sCurrent.LastIndexOf(".") > 1)
{
string[] sSplit = sCurrent.Split('.');
sCurrent = sSplit[0] + "." + sSplit[1] + sSplit[2];
}
double dCurrent = Convert.ToDouble(sCurrent, System.Globalization.CultureInfo.InvariantCulture);
double dExpected = Convert.ToDouble(sExpectedVersion);
if (dCurrent >= dExpected)
#8
2
public class DA
{
public static class VersionNetFramework
{
public static string GetVersion()
{
return Environment.Version.ToString();
}
public static string GetVersionDicription()
{
int Major = Environment.Version.Major;
int Minor = Environment.Version.Minor;
int Build = Environment.Version.Build;
int Revision = Environment.Version.Revision;
//http://dzaebel.net/NetVersionen.htm
//http://*.com/questions/12971881/how-to-reliably-detect-the-actual-net-4-5-version-installed
//4.0.30319.42000 = .NET 4.6 on Windows 8.1 64 - bit
if ((Major >=4) && (Minor >=0) && (Build >= 30319) && (Revision >= 42000))
return @".NET 4.6 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 7 SP1 64 - bit or later";
//4.0.30319.34014 = .NET 4.5.1 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34014))
return @".NET 4.5.1 on Windows 8.1 64 - bit or later";
//4.0.30319.18444 = .NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18444))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18408 = .NET 4.5.1 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18408))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18063 = .NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18063))
return @".NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18052 = .NET 4.5 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18052))
return @".NET 4.5 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18010 = .NET 4.5 on Windows 8
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18010))
return @".NET 4.5 on Windows 8 or later";
//4.0.30319.17929 = .NET 4.5 RTM
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17929))
return @".NET 4.5 RTM or later";
//4.0.30319.17626 = .NET 4.5 RC
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17626))
return @".NET 4.5 RC or later";
//4.0.30319.17020.NET 4.5 Preview, September 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17020))
return @".NET 4.5 Preview, September 2011 or later";
//4.0.30319.2034 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 2034))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update) or later";
//4.0.30319.1026 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1026))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update) or later";
//4.0.30319.1022 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1022))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update) or later";
//4.0.30319.1008 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1008))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update) or later";
//4.0.30319.544 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 544))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update) or later";
//4.0.30319.447 yes built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 447))
return @"built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011 or later";
//4.0.30319.431 yes built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 431))
return @"built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update or later";
//4.0.30319.296 = .NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 296))
return @".NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update) or later";
//4.0.30319.276 = .NET 4.0 on Windows XP SP3 (4.0.3 Runtime update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 276))
return @".NET 4.0 on Windows XP SP3 (4.0.3 Runtime update) or later";
//4.0.30319.269 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 269))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update) or later";
//4.0.30319.1 yes built by: RTMRel, .NET 4.0 RTM Release, April 2010
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1))
return @"built by: RTMRel, .NET 4.0 RTM Release, April 2010 or later";
//4.0.30128.1 built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010
if ((Major >=4) && (Minor >=0) && (Build >= 30128) && (Revision >= 1))
return @"built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010 or later";
//4.0.21006.1 built by: B2Rel, .NET 4.0 Beta2, Oct 2009
if ((Major >=4) && (Minor >=0) && (Build >= 21006) && (Revision >=1))
return @"built by: B2Rel, .NET 4.0 Beta2, Oct 2009 or later";
//4.0.20506.1 built by: Beta1, .NET 4.0 Beta1, May 2009
if ((Major >=4) && (Minor >=0) && (Build >= 20506) && (Revision >=1))
return @"built by: Beta1, .NET 4.0 Beta1, May 2009 or later";
//4.0.11001.1 built by: CTP2 VPC, .NET 4.0 CTP, October 2008
if ((Major >=4) && (Minor >=0) && (Build >= 11001) && (Revision >=1))
return @"built by: CTP2 VPC, .NET 4.0 CTP, October 2008 or later";
//3.5.30729.5420 yes built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5420))
return @"built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011 or later";
//3.5.30729.5004 yes built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5004))
return @"built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4466 yes built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4466))
return @"built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4926 yes built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4926))
return @"built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes or later";
//3.5.30729.4918 built by: NetFXw7 / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4918))
return @"built by: NetFXw7 / Windows 7 Release Candidate, June 2009 or later";
//3.5.30729.196 yes built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=196))
return @"built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008 or later";
//3.5.30729.1 yes built by: SP, .NET 3.5 SP1, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=1))
return @"built by: SP, .NET 3.5 SP1, Aug 2008 or later";
//3.5.30428.1 built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008
if ((Major >=3) && (Minor >=5) && (Build >= 30428) && (Revision >=1))
return @"built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008 or later";
//3.5.21022.8 yes built by: RTM, Jan 2008
if ((Major >=3) && (Minor >=5) && (Build >= 21022) && (Revision >= 8))
return @"built by: RTM, Jan 2008 or later";
//3.5.20706.1 built by: Beta2, Orcas Beta2, Oct 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20706) && (Revision >= 1))
return @"built by: Beta2, Orcas Beta2, Oct 2007 or later";
//3.5.20526.0 built by: MCritCTP, Orcas Beta1, Mar 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20526) && (Revision >=0))
return @"built by: MCritCTP, Orcas Beta1, Mar 2007 or later";
//3.0.6920.1500 yes built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483
if ((Major >=3) && (Minor >=0) && (Build >= 6920) && (Revision >= 1500))
return @"built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483 or later";
//3.0.4506.4926 yes(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=3) && (Minor >=0) && (Build >= 4506) && (Revision >= 4926))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009 or later";
//3.0.4506.4918(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 4506) && (Revision >= 4918))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//3.0.4506.2152 3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2152))
return @"3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009 or later";
//3.0.4506.2123 yes(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2123))
return @"s(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008 or later";
//3.0.4506.2062(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2062))
return @"(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008 or later";
//3.0.4506.590(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 590))
return @"(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007 or later";
//3.0.4506.577(winfxred.004506 - 0577), Orcas Beta1, Mar 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 577))
return @"(winfxred.004506 - 0577), Orcas Beta1, Mar 2007 or later";
//3.0.4506.30 yes Release (.NET Framework 3.0) Nov 2006
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 30))
return @"Release (.NET Framework 3.0) Nov 2006 or later";
//3.0.4506.25 yes(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 25))
return @"(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007 or later";
//2.0.50727.4927 yes(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=2) && (Minor >=0) && (Build >= 50727) && (Revision >= 4927))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009 or later";
//2.0.50727.4918(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4918))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//2.0.50727.4200 yes(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4200))
return @"(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009 or later";
//2.0.50727.3603(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3603))
return @"(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009 or later";
//2.0.50727.3082 yes(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3082))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481 or later";
//2.0.50727.3074 yes(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3074))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481 or later";
//2.0.50727.3053 yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3053))
return @"yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008 or later";
//2.0.50727.3031(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3031))
return @"(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008 or later";
//2.0.50727.1434 yes(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1434))
return @"(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007 or later";
//2.0.50727.1433 yes(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007, http://www.microsoft.com/downloads/details.aspx?FamilyID=79bc3b77-e02c-4ad3-aacf-a7633f706ba5
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1433))
return @"(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007 or later";
//2.0.50727.1378(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1378))
return @"(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007 or later";
//2.0.50727.1366(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1366))
return @"(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007 or later";
//2.0.50727.867 yes(VS Express Edition 2005 SP1), Apr 2007, http://www.microsoft.com/downloads/details.aspx?FamilyId=7B0B0339-613A-46E6-AB4D-080D4D4A8C4E
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 867))
return @"(VS Express Edition 2005 SP1), Apr 2007 or later";
//2.0.50727.832(Fix x86 VC++2005), Apr 2007, http://support.microsoft.com/kb/934586/en-us
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 832))
return @"(Fix x86 VC++2005), Apr 2007 or later";
//2.0.50727.762 yes(VS TeamSuite SP1), http://www.microsoft.com/downloads/details.aspx?FamilyId=BB4A75AB-E2D4-4C96-B39D-37BAF6B5B1DC
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 762))
return @"(VS TeamSuite SP1) or later";
//2.0.50727.312 yes(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 312))
return @"(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007 or later";
//2.0.50727.42 yes Release (.NET Framework 2.0) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 42))
return @"Release (.NET Framework 2.0) Oct 2005 or later";
//2.0.50727.26 Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 26))
return @"Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005 or later";
//2.0.50712 Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50712))
return @"Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005 or later";
//2.0.50215 Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215))
return @"Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005 or later";
//2.0.50601.0 Version 2.0(Visual Studio.NET 2005 CTP) June 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50601) && (Revision >=0))
return @"Version 2.0(Visual Studio.NET 2005 CTP) June 2005 or later";
//2.0.50215.44 Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215) && (Revision >= 44))
return @"Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005 or later";
//2.0.50110.28 Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50110) && (Revision >=28))
return @"Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005 or later";
//2.0.41115.19 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004
if ((Major >=2 ) && (Minor >=0 ) && (Build >= 41115) && (Revision >= 19))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004 or later";
//2.0.40903.0 Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40903) && (Revision >=0))
return @"Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004 or later";
//2.0.40607.85 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 *
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 85))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 * or later";
//2.0.40607.42 Version 2.0(SQL Server Yukon Beta 2) July 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 42))
return @"Version 2.0(SQL Server Yukon Beta 2) July 2004 or later";
//2.0.40607.16 Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 16))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004 or later";
//2.0.40301.9 Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 *
if ((Major >=0) && (Minor >=0) && (Build >= 40301) && (Revision >=9))
return @"Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 * or later";
//1.2.30703.27 Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 *
if ((Major >=1) && (Minor >=2) && (Build >= 30703) && (Revision >= 27))
return @"Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 * or later";
//1.2.21213.1 Version 1.2(Whidbey pre - Alpha build) *
if ((Major >=1) && (Minor >=2) && (Build >= 21213) && (Revision >=1))
return @"Version 1.2(Whidbey pre - Alpha build) * or later";
//1.1.4322.2443 yes Version 1.1 Servicepack 1, KB953297, Oct 2009
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >=2443))
return @"Version 1.1 Servicepack 1, KB953297, Oct 2009 or later";
//1.1.4322.2407 yes Version 1.1 RTM
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 RTM or later";
//1.1.4322.2407 Version 1.1 Orcas Beta2, Oct 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 Orcas Beta2, Oct 2007 or later";
//1.1.4322.2379 Version 1.1 Orcas Beta1, Mar 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2379))
return @"Version 1.1 Orcas Beta1, Mar 2007 or later";
//1.1.4322.2032 yes Version 1.1 SP1 Aug 2004
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2032))
return @"Version 1.1 SP1 Aug 2004 or later";
//1.1.4322.573 yes Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 573))
return @"Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 * or later";
//1.1.4322.510 Version 1.1 Final Beta Oct 2002 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 510))
return @"Version 1.1 Final Beta Oct 2002 * or later";
//1.0.3705.6018 yes Version 1.0 SP3 Aug 2004
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 6018))
return @"Version 1.0 SP3 Aug 2004 or later";
//1.0.3705.288 yes Version 1.0 SP2 Aug 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 288))
return @"Version 1.0 SP2 Aug 2002 * or later";
//1.0.3705.209 yes Version 1.0 SP1 Mar 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=209))
return @"Version 1.0 SP1 Mar 2002 * or later";
//1.0.3705.0 yes Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=0))
return @"Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 * or later";
//1.0.3512.0 Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3)
if ((Major >=1) && (Minor >=0) && (Build >= 3512) && (Revision >=0))
return @"Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3) or later";
//1.0.2914.16 Version 1.0 Public Beta 2 Jun 2001 *
if ((Major >=1) && (Minor >=0) && (Build >= 2914) && (Revision >= 16))
return @"Version 1.0 Public Beta 2 Jun 2001 * or later";
//1.0.2204.21 Version 1.0 Public Beta 1 Nov 2000 *
if ((Major >=1) && (Minor >=0) && (Build >= 2204) && (Revision >=21))
return @"Version 1.0 Public Beta 1 Nov 2000 * or later";
return @"Unknown .NET version";
}
}
}
#9
2
public class DA {
public static class VersionNetFramework {
public static string Get45or451FromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
return (@"Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
if (releaseKey >= 394271)
return "4.6.1 installed on all other Windows OS versions or later";
if (releaseKey >= 394254)
return "4.6.1 installed on Windows 10 or later";
if (releaseKey >= 393297)
return "4.6 installed on all other Windows OS versions or later";
if (releaseKey >= 393295)
return "4.6 installed with Windows 10 or later";
if (releaseKey >= 379893)
return "4.5.2 or later";
if (releaseKey >= 378758)
return "4.5.1 installed on Windows 8, Windows 7 SP1, or Windows Vista SP2 or later";
if (releaseKey >= 378675)
return "4.5.1 installed with Windows 8.1 or later";
if (releaseKey >= 378389)
return "4.5 or later";
return "No 4.5 or later version detected";
}
public static string GetVersionFromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
string res = @"";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (versionKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (" " + subKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
else if (install == "1")
{
res += (" " + subKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
return res;
}
public static string GetUpdateHistory()
{//https://msdn.microsoft.com/en-us/library/hh925567(v=vs.110).aspx
string res=@"";
using (RegistryKey baseKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\Updates"))
{
foreach (string baseKeyName in baseKey.GetSubKeyNames())
{
if (baseKeyName.Contains(".NET Framework") || baseKeyName.StartsWith("KB") || baseKeyName.Contains(".NETFramework"))
{
using (RegistryKey updateKey = baseKey.OpenSubKey(baseKeyName))
{
string name = (string)updateKey.GetValue("PackageName", "");
res += baseKeyName + " " + name + Environment.NewLine;
foreach (string kbKeyName in updateKey.GetSubKeyNames())
{
using (RegistryKey kbKey = updateKey.OpenSubKey(kbKeyName))
{
name = (string)kbKey.GetValue("PackageName", "");
res += (" " + kbKeyName + " " + name) + Environment.NewLine;
if (kbKey.SubKeyCount > 0)
{
foreach (string sbKeyName in kbKey.GetSubKeyNames())
{
using (RegistryKey sbSubKey = kbKey.OpenSubKey(sbKeyName))
{
name = (string)sbSubKey.GetValue("PackageName", "");
if (name == "")
name = (string)sbSubKey.GetValue("Description", "");
res += (" " + sbKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
}
}
}
return res;
}
}
using class DA.VersionNetFramework
使用类DA.VersionNetFramework
private void Form1_Shown(object sender, EventArgs e)
{
//
// Current OS Information
//
richTextBox1.Text = @"Current OS Information:";
richTextBox1.AppendText(Environment.NewLine +
"Machine Name: " + Environment.MachineName);
richTextBox1.AppendText(Environment.NewLine +
"Platform: " + Environment.OSVersion.Platform.ToString());
richTextBox1.AppendText(Environment.NewLine +
Environment.OSVersion);
//
// .NET Framework Environment Information
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Environment Information:");
richTextBox1.AppendText(Environment.NewLine +
"Environment.Version " + Environment.Version);
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionDicription());
//
// .NET Framework Information From Registry
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionFromRegistry());
//
// .NET Framework 4.5 or later Information From Registry
//
richTextBox1.AppendText(Environment.NewLine +
".NET Framework 4.5 or later Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.Get45or451FromRegistry());
//
// Update History
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
"Update History");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetUpdateHistory());
//
// Setting Cursor to first character of textbox
//
if (!richTextBox1.Text.Equals(""))
{
richTextBox1.SelectionStart = 1;
}
}
Result:
结果:
Current OS Information: Machine Name: D1 Platform: Win32NT Microsoft Windows NT 6.2.9200.0
当前操作系统信息:机器名称:D1平台:Win32NT微软windowsnt6.2.9200.0
.NET Framework Environment Information: Environment.Version 4.0.30319.42000 .NET 4.6 on Windows 8.1 64 - bit or later
。net框架环境信息:环境。版本4.0.30319.42000。net 4.6的Windows 8.1 64位或更高版本
.NET Framework Information From Registry: v2.0.50727 2.0.50727.4927 SP2 v3.0 3.0.30729.4926 SP2 v3.5 3.5.30729.4926 SP1
.NET框架信息来自Registry: v2.0.50727 2.0.50727.4927 SP2 v3.0 3.0.30729.4926 SP2 v3.5 3.5.30729.4926 SP1
v4
Client 4.6.00079 Full 4.6.00079 v4.0
Client 4.0.0.0
v4客户端4.6.00079 Full 4.6.00079 v4.0客户端4.0.0
.NET Framework 4.5 or later Information From Registry: Version: 4.6 installed with Windows 10 or later
.NET Framework 4.5或更高版本的注册表信息:版本:4.6安装了Windows 10或更高版本
Update History Microsoft .NET Framework 4 Client Profile
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Extended
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Multi-Targeting Pack
KB2504637 Update for (KB2504637)
更新历史Microsoft .NET Framework 4客户端配置文件KB2468871 KB2468871v2 KB2478063 KB2533523 KB2544514 KB2600211 KB2600211 KB2600217 Microsoft Framework 4 Extended KB2468871 KB2468871v2 KB2478063 2533563 KB2533523 kb2534514kb2544514kb2544514kb2542542542544514kb26002914kb260024002900290029002900kb24kb2400290029002900290029002900290024 kb240029002900290029 kb240029002900290024 kb2400290026002900290029微软框架
#10
2
This class allows your application to throw out a graceful notification message rather than crash and burn if it couldn't find the proper .NET version. All you need to do is this in your main code:
这个类允许应用程序抛出一个优雅的通知消息，而不是崩溃和烧伤，如果它找不到合适的。net版本。你所需要做的就是在你的主代码中:
[STAThread]
static void Main(string[] args)
{
if (!DotNetUtils.IsCompatible())
return;
. . .
}
By default it takes 4.5.2, but you can tweak it to your liking, the class (feel free to replace MessageBox with Console):
默认情况下需要4.5.2，但是您可以根据自己的喜好调整类(可以用控制台替换MessageBox):
public class DotNetUtils
{
public enum DotNetRelease
{
NOTFOUND,
NET45,
NET451,
NET452,
NET46,
NET461,
NET462,
NET47,
NET471
}
public static bool IsCompatible(DotNetRelease req = DotNetRelease.NET452)
{
DotNetRelease r = GetRelease();
if (r < req)
{
MessageBox.Show(String.Format("This this application requires {0} or greater.", req.ToString()));
return false;
}
return true;
}
public static DotNetRelease GetRelease(int release = default(int))
{
int r = release != default(int) ? release : GetVersion();
if (r >= 461308) return DotNetRelease.NET471;
if (r >= 460798) return DotNetRelease.NET47;
if (r >= 394802) return DotNetRelease.NET462;
if (r >= 394254) return DotNetRelease.NET461;
if (r >= 393295) return DotNetRelease.NET46;
if (r >= 379893) return DotNetRelease.NET452;
if (r >= 378675) return DotNetRelease.NET451;
if (r >= 378389) return DotNetRelease.NET45;
return DotNetRelease.NOTFOUND;
}
public static int GetVersion()
{
int release = 0;
using (RegistryKey key = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32)
.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
release = Convert.ToInt32(key.GetValue("Release"));
}
return release;
}
}
Easily extendable when they add a new version later on. I didn't bother with anything before 4.5 but you get the idea.
以后添加新版本时，很容易扩展。4。5之前我什么都没做，但你懂的。
#11
1
Update with .NET 4.6.2. Check Release value in the same registry as in previous responses:
与。net 4.6.2更新。在相同的注册表中检查发布值与以前的响应:
RegistryKey registry_key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full");
if (registry_key == null)
return false;
var val = registry_key.GetValue("Release", 0);
UInt32 Release = Convert.ToUInt32(val);
if (Release >= 394806) // 4.6.2 installed on all other Windows (different than Windows 10)
return true;
if (Release >= 394802) // 4.6.2 installed on Windows 10 or later
return true;
#12
1
I have changed Matt's class so it can be reused in any project without printing all its checks on Console and returning a simple string with correct max version installed.
我已经更改了Matt的类，这样它就可以在任何项目中重用，而无需在控制台打印所有的检查，并返回一个安装了正确的max版本的简单字符串。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
namespace MyNamespace
{
public class DotNetVersion
{
protected bool printVerification;
public DotNetVersion(){
this.printVerification=false;
}
public DotNetVersion(bool printVerification){
this.printVerification=printVerification;
}
public string getDotNetVersion(){
string maxDotNetVersion = getVersionFromRegistry();
if(String.Compare(maxDotNetVersion, "4.5") >= 0){
string v45Plus = get45PlusFromRegistry();
if(!string.IsNullOrWhiteSpace(v45Plus)) maxDotNetVersion = v45Plus;
}
log("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
return maxDotNetVersion;
}
protected string get45PlusFromRegistry(){
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey)){
if(ndpKey != null && ndpKey.GetValue("Release") != null){
dotNetVersion = checkFor45PlusVersion((int)ndpKey.GetValue("Release"));
log(".NET Framework Version: " + dotNetVersion);
}else{
log(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
protected string checkFor45PlusVersion(int releaseKey){
if(releaseKey >= 461308) return "4.7.1 or later";
if(releaseKey >= 460798) return "4.7";
if(releaseKey >= 394802) return "4.6.2";
if(releaseKey >= 394254) return "4.6.1";
if(releaseKey >= 393295) return "4.6";
if((releaseKey >= 379893)) return "4.5.2";
if((releaseKey >= 378675)) return "4.5.1";
if((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
log("No 4.5 or later version detected");
return "";
}
protected string getVersionFromRegistry(){
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using(RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\")){
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
string[] subKeyNnames = ndpKey.GetSubKeyNames();
foreach(string versionKeyName in subKeyNnames){
if(versionKeyName.StartsWith("v")){
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name =(string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){ //no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(versionKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if(!string.IsNullOrWhiteSpace(name)){
continue;
}
string[] subKeyNames = versionKey.GetSubKeyNames();
foreach(string subKeyName in subKeyNames){
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name =(string)subKey.GetValue("Version", "");
if(!string.IsNullOrWhiteSpace(name)){
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){
//no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(" " + subKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if("1".Equals(install)){
log(" " + subKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
protected void log(string message){
if(printVerification) Console.WriteLine(message);
}
} // class
}
#13
1
I tried to combine all the answers into a single whole.
我试着把所有的答案组合成一个整体。
Using:
使用:
NetFrameworkUtilities.GetVersion() will return the currently available Version of the .NET Framework at this time or null if it is not present.
getversion()此时将返回. net Framework当前可用的版本，如果不存在则返回null。
This example works in .NET Framework versions 3.5+. It does not require administrator rights.
这个例子适用于。net Framework 3.5+版本。它不需要管理员权限。
I want to note that you can check the version using the operators < and > like this:
我要注意的是，您可以使用操作符 <和> 来检查版本:
if (NetFrameworkUtilities.GetVersion() < new Version(4, 5))
{
MessageBox.Show("Your .NET Framework version is less than 4.5");
}
Code:
代码:
using System;
using System.Linq;
using Microsoft.Win32;
namespace Utilities
{
public static class NetFrameworkUtilities
{
public static Version GetVersion() => GetVersionHigher4() ?? GetVersionLowerOr4();
private static Version GetVersionLowerOr4()
{
var installedVersions = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
var versionNames = installedVersions?.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
var text = versionNames?.LastOrDefault()?.Remove(0, 1);
if (string.IsNullOrEmpty(text))
{
return null;
}
return text.Contains('.')
? new Version(text)
: new Version(Convert.ToInt32(text), 0);
}
private static Version GetVersionHigher4()
{
using (var key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
var value = key?.GetValue("Release");
if (value == null)
{
return null;
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
var releaseKey = Convert.ToInt32(value);
if (releaseKey >= 461308) return new Version(4, 7, 1);
if (releaseKey >= 460798) return new Version(4, 7);
if (releaseKey >= 394747) return new Version(4, 6, 2);
if (releaseKey >= 394254) return new Version(4, 6, 1);
if (releaseKey >= 381029) return new Version(4, 6);
if (releaseKey >= 379893) return new Version(4, 5, 2);
if (releaseKey >= 378675) return new Version(4, 5, 1);
if (releaseKey >= 378389) return new Version(4, 5);
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return new Version(4, 5);
}
}
}
}
#14
0
Try this one:
试试这个:
string GetFrameWorkVersion()
{
return System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion();
}
#15
0
Little large, but looks like it is up-to-date to Microsoft oddities:
有点大，但看起来是微软最新的怪事:
public static class Versions
{
static Version
_NET;
static SortedList<String,Version>
_NETInstalled;
#if NET40
#else
public static bool VersionTry(String S, out Version V)
{
try
{
V=new Version(S);
return true;
}
catch
{
V=null;
return false;
}
}
#endif
const string _NetFrameWorkKey = "SOFTWARE\\Microsoft\\NET Framework Setup\\NDP";
static void FillNetInstalled()
{
if (_NETInstalled == null)
{
_NETInstalled = new SortedList<String, Version>(StringComparer.InvariantCultureIgnoreCase);
RegistryKey
frmks = Registry.LocalMachine.OpenSubKey(_NetFrameWorkKey);
string[]
names = frmks.GetSubKeyNames();
foreach (string name in names)
{
if (name.StartsWith("v", StringComparison.InvariantCultureIgnoreCase) && name.Length > 1)
{
string
f, vs;
Version
v;
vs = name.Substring(1);
if (vs.IndexOf('.') < 0)
vs += ".0";
#if NET40
if (Version.TryParse(vs, out v))
#else
if (VersionTry(vs, out v))
#endif
{
f = String.Format("{0}.{1}", v.Major, v.Minor);
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#endif
{
if (!_NETInstalled.ContainsKey(f) || v.CompareTo(_NETInstalled[f]) > 0)
_NETInstalled[f] = v;
}
else
{ // parse variants
Version
best = null;
if (_NETInstalled.ContainsKey(f))
best = _NETInstalled[f];
string[]
varieties = frmks.OpenSubKey(name).GetSubKeyNames();
foreach (string variety in varieties)
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#endif
{
if (best == null || v.CompareTo(best) > 0)
{
_NETInstalled[f] = v;
best = v;
}
vs = f + '.' + variety;
if (!_NETInstalled.ContainsKey(vs) || v.CompareTo(_NETInstalled[vs]) > 0)
_NETInstalled[vs] = v;
}
}
}
}
}
}
} // static void FillNetInstalled()
public static Version NETInstalled
{
get
{
FillNetInstalled();
return _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
}
} // NETInstalled
public static Version NET
{
get
{
FillNetInstalled();
string
clr = String.Format("{0}.{1}", Environment.Version.Major, Environment.Version.Minor);
Version
found = _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
if(_NETInstalled.ContainsKey(clr))
return _NETInstalled[clr];
for (int i = _NETInstalled.Count - 1; i >= 0; i--)
if (_NETInstalled.Keys[i].CompareTo(clr) < 0)
return found;
else
found = _NETInstalled[_NETInstalled.Keys[i]];
return found;
}
} // NET
}
#16
0
As of version 4.5 Microsoft changed the way it stores the .NET Framework indicator in the registry. There official guidance on how to retrieve the .NET framework and the CLR versions can be found here: https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
在4.5版本中，微软改变了在注册表中存储。net框架指示器的方式。关于如何检索.NET框架和CLR版本的官方指导可以在这里找到:https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
I am including modified version of their code to address the bounty question of how you determine the .NET framework for 4.5 and higher here:
我将包括他们代码的修改版本，以解决如何在这里为4.5或更高版本确定。net框架的问题:
using System;
using System.Reflection;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Win32;
namespace *testing
{
class Program
{
static void Main(string[] args)
{
Dictionary<int, String> mappings = new Dictionary<int, string>();
mappings[378389] = "4.5";
mappings[378675] = "4.5.1 on Windows 8.1";
mappings[378758] = "4.5.1 on Windows 8, Windows 7 SP1, and Vista";
mappings[379893] = "4.5.2";
mappings[393295] = "4.6 on Windows 10";
mappings[393297] = "4.6 on Windows not 10";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
Console.WriteLine("Version: " + mappings[releaseKey]);
}
}
int a = Console.Read();
}
}
}
#17
0
This is the solution I landed on:
这就是我的解决方案:
private static string GetDotNetVersion()
{
var v4 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full", false)?.GetValue("Version");
if(v4 != null)
return v4;
var v35 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5", false)?.GetValue("Version");
if(v35 != null)
return v35;
var v3 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0", false)?.GetValue("Version");
return v3 ?? "< 3";
}
#18
0
public static class DotNetHelper
{
public static Version InstalledVersion
{
get
{
string framework = null;
try
{
using (var ndpKey =
Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
if (ndpKey != null)
{
var releaseKey = ndpKey.GetValue("Release");
if (releaseKey != null)
{
framework = CheckFor45PlusVersion(Convert.ToInt32(releaseKey));
}
else
{
string[] versionNames = null;
using (var installedVersions =
Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP"))
{
if (installedVersions != null) versionNames = installedVersions.GetSubKeyNames();
}
try
{
if (versionNames != null && versionNames.Length > 0)
{
framework = versionNames[versionNames.Length - 1].Remove(0, 1);
}
}
catch (FormatException)
{
}
}
}
}
}
catch (SecurityException)
{
}
return framework != null ? new Version(framework) : null;
}
}
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 460798)
return "4.7";
if (releaseKey >= 394802)
return "4.6.2";
if (releaseKey >= 394254)
return "4.6.1";
if (releaseKey >= 393295)
return "4.6";
if (releaseKey >= 379893)
return "4.5.2";
if (releaseKey >= 378675)
return "4.5.1";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return releaseKey >= 378389 ? "4.5" : null;
}
}
#19
0
If your machine is connected to the internet, going to smallestdotnet, downloading and executing the .NET Checker is probably the easiest way.
如果你的机器连接到因特网，去smallestdotnet，下载和执行。net检查器可能是最简单的方法。
If you need the actual method to deterine the version look at its source on github, esp. the Constants.cs which will help you for .net 4.5 and later, where the Revision part is the relvant one:
如果您需要确定版本的实际方法，请查看github上的源代码，尤其是常量。cs，在。net 4.5和以后的版本中会对你有所帮助，其中修订部分是相关的:
{ int.MinValue, "4.5" },
{ 378389, "4.5" },
{ 378675, "4.5.1" },
{ 378758, "4.5.1" },
{ 379893, "4.5.2" },
{ 381029, "4.6 Preview" },
{ 393273, "4.6 RC1" },
{ 393292, "4.6 RC2" },
{ 393295, "4.6" },
{ 393297, "4.6" },
{ 394254, "4.6.1" },
{ 394271, "4.6.1" },
{ 394747, "4.6.2 Preview" },
{ 394748, "4.6.2 Preview" },
{ 394757, "4.6.2 Preview" },
{ 394802, "4.6.2" },
{ 394806, "4.6.2" },
#1
77
Something like this should do it. Just grab the value from the registry
像这样的东西应该可以。只需从注册表中获取值
For .NET 1-4:
为。net 1 - 4:
Framework is the highest installed version, SP is the service pack for that version.
框架是最高安装版本，SP是该版本的服务包。
RegistryKey installed_versions = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
string[] version_names = installed_versions.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
double Framework = Convert.ToDouble(version_names[version_names.Length - 1].Remove(0, 1), CultureInfo.InvariantCulture);
int SP = Convert.ToInt32(installed_versions.OpenSubKey(version_names[version_names.Length - 1]).GetValue("SP", 0));
For .NET 4.5+ (from official documentation):
net 4.5+(官方文件):
using System;
using Microsoft.Win32;
...
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true) {
Console.WriteLine("Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
...
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 461808) {
return "4.7.2 or later";
}
if (releaseKey >= 461308) {
return "4.7.1 or later";
}
if (releaseKey >= 460798) {
return "4.7 or later";
}
if (releaseKey >= 394802) {
return "4.6.2 or later";
}
if (releaseKey >= 394254) {
return "4.6.1 or later";
}
if (releaseKey >= 393295) {
return "4.6 or later";
}
if (releaseKey >= 393273) {
return "4.6 RC or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
#2
18
Not sure why nobody suggested following the official advice from Microsoft right here.
不知道为什么没有人建议遵循微软的官方建议。
This is the code they recommend. Sure it's ugly, but it works.
这是他们推荐的代码。它的确很丑，但很管用。
For .NET 1-4
private static void GetVersionFromRegistry()
{
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
}
}
}
}
}
}
}
For .NET 4.5 and later
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{
if (releaseKey >= 393295) {
return "4.6 or later";
}
if ((releaseKey >= 379893)) {
return "4.5.2 or later";
}
if ((releaseKey >= 378675)) {
return "4.5.1 or later";
}
if ((releaseKey >= 378389)) {
return "4.5 or later";
}
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static void Get45or451FromRegistry()
{
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\")) {
if (ndpKey != null && ndpKey.GetValue("Release") != null) {
Console.WriteLine("Version: " + CheckFor45DotVersion((int) ndpKey.GetValue("Release")));
}
else {
Console.WriteLine("Version 4.5 or later is not detected.");
}
}
}
#3
9
Environment.Version() is giving the correct answer for a different question. The same version of the CLR is used in .NET 2.0, 3, and 3.5. I suppose you could check the GAC for libraries that were added in each of those subsequent releases.
version()给出了不同问题的正确答案。在。net 2.0、3和3.5中使用了相同的CLR版本。我想您可以检查GAC是否有在后续版本中添加的库。
#4
6
AFAIK there's no built in method in the framework that will allow you to do this. You could check this post for a suggestion on determining framework version by reading windows registry values.
在框架中没有内置的方法允许你这样做。您可以在这篇文章中查阅有关通过读取windows注册表值来确定框架版本的建议。
#5
6
An alternative method where no right to access the registry are needed, is to check for the existence of classes that are introduced in specific framework updates.
另一种不需要访问注册表的方法是检查在特定框架更新中引入的类是否存在。
private static bool Is46Installed()
{
// API changes in 4.6: https://github.com/Microsoft/dotnet/blob/master/releases/net46/dotnet46-api-changes.md
return Type.GetType("System.AppContext, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is461Installed()
{
// API changes in 4.6.1: https://github.com/Microsoft/dotnet/blob/master/releases/net461/dotnet461-api-changes.md
return Type.GetType("System.Data.SqlClient.SqlColumnEncryptionCngProvider, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is462Installed()
{
// API changes in 4.6.2: https://github.com/Microsoft/dotnet/blob/master/releases/net462/dotnet462-api-changes.md
return Type.GetType("System.Security.Cryptography.AesCng, System.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089", false) != null;
}
private static bool Is47Installed()
{
// API changes in 4.7: https://github.com/Microsoft/dotnet/blob/master/releases/net47/dotnet47-api-changes.md
return Type.GetType("System.Web.Caching.CacheInsertOptions, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", false) != null;
}
#6
4
It isn't easy any more to determine the current .NET version number. Microsoft has provided two different sample scripts depending on the .NET version that is being checked, but I don't like having two different C# scripts for this. So I tried to combine them into one, here's the script I created (and updated it for 4.7.1 framework):
现在确定当前的。net版本号已经不容易了。微软根据正在检查的。net版本提供了两个不同的示例脚本，但是我不喜欢为此使用两个不同的c#脚本。所以我尝试将它们合并为一个，这是我创建的脚本(并更新为4.7.1框架):
using System;
using Microsoft.Win32;
public class GetDotNetVersion
{
public static void Main()
{
string maxDotNetVersion = GetVersionFromRegistry();
if (String.Compare(maxDotNetVersion, "4.5") >= 0)
{
string v45Plus = GetDotNetVersion.Get45PlusFromRegistry();
if (v45Plus != "") maxDotNetVersion = v45Plus;
}
Console.WriteLine("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
}
private static string Get45PlusFromRegistry()
{
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey))
{
if (ndpKey != null && ndpKey.GetValue("Release") != null)
{
dotNetVersion = CheckFor45PlusVersion((int)ndpKey.GetValue("Release"));
Console.WriteLine(".NET Framework Version: " + dotNetVersion);
}
else
{
Console.WriteLine(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 461308) return "4.7.1 or later";
if (releaseKey >= 460798) return "4.7";
if (releaseKey >= 394802) return "4.6.2";
if (releaseKey >= 394254) return "4.6.1";
if (releaseKey >= 393295) return "4.6";
if ((releaseKey >= 379893)) return "4.5.2";
if ((releaseKey >= 378675)) return "4.5.1";
if ((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return "No 4.5 or later version detected";
}
private static string GetVersionFromRegistry()
{
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
{
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(versionKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
{
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if (install == "")
{
//no install info, must be later.
Console.WriteLine(versionKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else
{
if (sp != "" && install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name + " SP" + sp);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if (install == "1")
{
Console.WriteLine(" " + subKeyName + " " + name);
if (String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
} // class
On my machine it outputs:
在我的机器上它输出:
v2.0.50727 2.0.50727.4927 SP2
v3.0 3.0.30729.4926 SP2
v3.5 3.5.30729.4926 SP1
v4
Client 4.7.02558
Full 4.7.02558
v4.0
Client 4.0.0.0
.NET Framework Version: 4.7.1 or later
**** Maximum .NET version number found is: 4.7.1 or later ****net Framework版本:4.7.1或更高版本**** **最大版本号为:4.7.1或更高版本**** *
The only thing that needs to be maintained over time is the build number once a .NET version greater than 4.7.1 comes out - that can be done easily by modifying the function CheckFor45PlusVersion, you need to know the release key for the new version then you can add it. For example:
随着时间的推移，唯一需要维护的是当一个。net版本超过4.7.1时的构建号——通过修改函数CheckFor45PlusVersion可以很容易地做到这一点，您需要知道新版本的发布键，然后您可以添加它。例如:
if (releaseKey >= 461308) return "4.7.1 or later";
This release key is still the latest one and valid for the Fall Creators update of Windows 10. If you're still running other (older) Windows versions, there is another one as per this documentation from Microsoft:
这个释放键仍然是最新的，对于Windows 10的秋季创建者更新是有效的。如果您还在运行其他(旧的)Windows版本，那么根据微软的文档，还有另一个版本:
.NET Framework 4.7.1 installed on all other Windows OS versions 461310
.NET Framework 4.7.1安装在所有其他Windows OS版本461310上
So, if you need that as well, you'll have to add
所以，如果你也需要这个，你需要加上
if (releaseKey >= 461310) return "4.7.1 or later";
to the top of the function CheckFor45PlusVersion.
到函数的顶部，checkfor45plus。
Note: You don't need Visual Studio to be installed, not even PowerShell - you can use csc.exe to compile and run the script above, which I have described here.
注意:您不需要安装Visual Studio，甚至PowerShell——您可以使用csc。编译并运行上面的脚本的exe，我在这里描述了这一点。
Update: The question is about the .NET Framework, for the sake of completeness I'd like to mention how to query the version of .NET Core as well - compared with the above, that is easy: Open a command shell and type: dotnet --info Enter and it will list the .NET Core version number, the Windows version and the versions of each related runtime DLL as well. Sample output:
更新:问题是关于。net框架,为了完成我想提到如何查询版本的。net核心——与以上相比,这很简单:打开一个命令shell和类型:dotnet——信息输入和. net核心版本号列表,每个相关的Windows版本和版本运行时DLL。样例输出:
.NET Core SDK (reflecting any global.json):
Version: 2.1.300
Commit: adab45bf0c
Runtime Environment:
OS Name: Windows
OS Version: 10.0.15063
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.1.300\
Host (useful for support):
Version: 2.1.0
Commit: caa7b7e2ba
.NET Core SDKs installed:
1.1.9 [C:\Program Files\dotnet\sdk]
2.1.102 [C:\Program Files\dotnet\sdk]
...
2.1.300 [C:\Program Files\dotnet\sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.All 2.1.0 [C:\Program
Files\dotnet\shared\Microsoft.AspNetCore.All]
...
Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-downloadnet核心SDK(反映任何global.json):版本:2.1.300提交:adab45bf0c运行时环境:操作系统名称:Windows操作系统版本:10.0.15063 OS平台:Windows掉:win10-x64基本路径:C:\Program Files\dotnet\sdk\2.1.300\主机(用于支持):版本:2.1.0的提交:caa7b7e2ba。net核心SDK安装:1.1.9[C:\ Program Files \ dotnet \ SDK]2.1.102(C:\ Program Files \ dotnet \ SDK)……2.1.300 [C:\程序文件\dotnet\sdk] . net核心运行时已安装:Microsoft.AspNetCore。所有2.1.0(C:\ Program Files \ dotnet \ \ Microsoft.AspNetCore共享。所有]…Microsoft.NETCore。应用2.1.0(C:\ Program Files \ dotnet \ \ Microsoft.NETCore共享。安装额外的。net核心运行时或SDKs: https://aka.ms/dotnet下载
#7
2
Thank you for this post which was quite useful. I had to tweak it a little in order to check for framework 2.0 because the registry key cannot be converted straightaway to a double. Here is the code:
谢谢你的这篇非常有用的文章。为了检查framework 2.0，我不得不对它进行一些调整，因为注册表项不能直接转换为double。这是代码:
string[] version_names = rk.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5'
//we also need to take care of strings like v2.0.50727...
string sCurrent = version_names[version_names.Length - 1].Remove(0, 1);
if (sCurrent.LastIndexOf(".") > 1)
{
string[] sSplit = sCurrent.Split('.');
sCurrent = sSplit[0] + "." + sSplit[1] + sSplit[2];
}
double dCurrent = Convert.ToDouble(sCurrent, System.Globalization.CultureInfo.InvariantCulture);
double dExpected = Convert.ToDouble(sExpectedVersion);
if (dCurrent >= dExpected)
#8
2
public class DA
{
public static class VersionNetFramework
{
public static string GetVersion()
{
return Environment.Version.ToString();
}
public static string GetVersionDicription()
{
int Major = Environment.Version.Major;
int Minor = Environment.Version.Minor;
int Build = Environment.Version.Build;
int Revision = Environment.Version.Revision;
//http://dzaebel.net/NetVersionen.htm
//http://*.com/questions/12971881/how-to-reliably-detect-the-actual-net-4-5-version-installed
//4.0.30319.42000 = .NET 4.6 on Windows 8.1 64 - bit
if ((Major >=4) && (Minor >=0) && (Build >= 30319) && (Revision >= 42000))
return @".NET 4.6 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 8.1 64 - bit or later";
//4.0.30319.34209 = .NET 4.5.2 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34209))
return @".NET 4.5.2 on Windows 7 SP1 64 - bit or later";
//4.0.30319.34014 = .NET 4.5.1 on Windows 8.1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 34014))
return @".NET 4.5.1 on Windows 8.1 64 - bit or later";
//4.0.30319.18444 = .NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18444))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18408 = .NET 4.5.1 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18408))
return @".NET 4.5.1 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18063 = .NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18063))
return @".NET 4.5 on Windows 7 SP1 64 - bit(with MS14 - 009 security update) or later";
//4.0.30319.18052 = .NET 4.5 on Windows 7 SP1 64 - bit
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18052))
return @".NET 4.5 on Windows 7 SP1 64 - bit or later";
//4.0.30319.18010 = .NET 4.5 on Windows 8
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 18010))
return @".NET 4.5 on Windows 8 or later";
//4.0.30319.17929 = .NET 4.5 RTM
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17929))
return @".NET 4.5 RTM or later";
//4.0.30319.17626 = .NET 4.5 RC
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17626))
return @".NET 4.5 RC or later";
//4.0.30319.17020.NET 4.5 Preview, September 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 17020))
return @".NET 4.5 Preview, September 2011 or later";
//4.0.30319.2034 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 2034))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 LDR security update) or later";
//4.0.30319.1026 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1026))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 057 GDR security update) or later";
//4.0.30319.1022 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1022))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS14 - 009 GDR security update) or later";
//4.0.30319.1008 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1008))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS13 - 052 GDR security update) or later";
//4.0.30319.544 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 544))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 LDR security update) or later";
//4.0.30319.447 yes built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 447))
return @"built by: RTMLDR, .NET 4.0 Platform Update 1, April 2011 or later";
//4.0.30319.431 yes built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 431))
return @"built by: RTMLDR, .NET 4.0 GDR Update, March 2011 / with VS 2010 SP1 / or.NET 4.0 Update or later";
//4.0.30319.296 = .NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 296))
return @".NET 4.0 on Windows XP SP3, 7(with MS12 - 074 GDR security update) or later";
//4.0.30319.276 = .NET 4.0 on Windows XP SP3 (4.0.3 Runtime update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 276))
return @".NET 4.0 on Windows XP SP3 (4.0.3 Runtime update) or later";
//4.0.30319.269 = .NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update)
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 269))
return @".NET 4.0 on Windows XP SP3, 7, 7 SP1(with MS12 - 035 GDR security update) or later";
//4.0.30319.1 yes built by: RTMRel, .NET 4.0 RTM Release, April 2010
if ((Major >= 4) && (Minor >= 0) && (Build >= 30319) && (Revision >= 1))
return @"built by: RTMRel, .NET 4.0 RTM Release, April 2010 or later";
//4.0.30128.1 built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010
if ((Major >=4) && (Minor >=0) && (Build >= 30128) && (Revision >= 1))
return @"built by: RC1Rel, .NET 4.0 Release Candidate, Feb 2010 or later";
//4.0.21006.1 built by: B2Rel, .NET 4.0 Beta2, Oct 2009
if ((Major >=4) && (Minor >=0) && (Build >= 21006) && (Revision >=1))
return @"built by: B2Rel, .NET 4.0 Beta2, Oct 2009 or later";
//4.0.20506.1 built by: Beta1, .NET 4.0 Beta1, May 2009
if ((Major >=4) && (Minor >=0) && (Build >= 20506) && (Revision >=1))
return @"built by: Beta1, .NET 4.0 Beta1, May 2009 or later";
//4.0.11001.1 built by: CTP2 VPC, .NET 4.0 CTP, October 2008
if ((Major >=4) && (Minor >=0) && (Build >= 11001) && (Revision >=1))
return @"built by: CTP2 VPC, .NET 4.0 CTP, October 2008 or later";
//3.5.30729.5420 yes built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5420))
return @"built by: Win7SP1, .NET 3.5.1 Sicherheits - Update, 12 April 2011 or later";
//3.5.30729.5004 yes built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 5004))
return @"built by: NetFXw7 / Windows 7..Rel., Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4466 yes built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4466))
return @"built by: NetFXw7 / Windows XP..Rel. , Jan 2010 / +Data functions KB976127 .NET 3.5 SP1 or later";
//3.5.30729.4926 yes built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4926))
return @"built by: NetFXw7 / Windows 7 Release, Oct 2009 / .NET 3.5 SP1 + Hotfixes or later";
//3.5.30729.4918 built by: NetFXw7 / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 30729) && (Revision >= 4918))
return @"built by: NetFXw7 / Windows 7 Release Candidate, June 2009 or later";
//3.5.30729.196 yes built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=196))
return @"built by: QFE, .NET 3.5 Family Update Vista / W2008, Dec 2008 or later";
//3.5.30729.1 yes built by: SP, .NET 3.5 SP1, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 30729) && (Revision >=1))
return @"built by: SP, .NET 3.5 SP1, Aug 2008 or later";
//3.5.30428.1 built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008
if ((Major >=3) && (Minor >=5) && (Build >= 30428) && (Revision >=1))
return @"built by: SP1Beta1, .NET 3.5 SP1 BETA1, May 2008 or later";
//3.5.21022.8 yes built by: RTM, Jan 2008
if ((Major >=3) && (Minor >=5) && (Build >= 21022) && (Revision >= 8))
return @"built by: RTM, Jan 2008 or later";
//3.5.20706.1 built by: Beta2, Orcas Beta2, Oct 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20706) && (Revision >= 1))
return @"built by: Beta2, Orcas Beta2, Oct 2007 or later";
//3.5.20526.0 built by: MCritCTP, Orcas Beta1, Mar 2007
if ((Major >=3) && (Minor >=5) && (Build >= 20526) && (Revision >=0))
return @"built by: MCritCTP, Orcas Beta1, Mar 2007 or later";
//3.0.6920.1500 yes built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483
if ((Major >=3) && (Minor >=0) && (Build >= 6920) && (Revision >= 1500))
return @"built by: QFE, Family Update Vista / W2008, Dez 2008, KB958483 or later";
//3.0.4506.4926 yes(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=3) && (Minor >=0) && (Build >= 4506) && (Revision >= 4926))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release, Oct 2009 or later";
//3.0.4506.4918(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >=3) && (Minor >=5) && (Build >= 4506) && (Revision >= 4918))
return @"(NetFXw7.030729 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//3.0.4506.2152 3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2152))
return @"3.0.4506.2152(SP.030729 - 0100) / .NET 4.0 Beta1 / May 2009 or later";
//3.0.4506.2123 yes(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2123))
return @"s(NetFX.030618 - 0000).NET 3.0 SP2, Aug 2008 or later";
//3.0.4506.2062(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 2062))
return @"(SP1Beta1.030428 - 0100), .NET 3.0 SP1 BETA1, May 2008 or later";
//3.0.4506.590(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 590))
return @"(winfxredb2.004506 - 0590), Orcas Beta2, Oct 2007 or later";
//3.0.4506.577(winfxred.004506 - 0577), Orcas Beta1, Mar 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 577))
return @"(winfxred.004506 - 0577), Orcas Beta1, Mar 2007 or later";
//3.0.4506.30 yes Release (.NET Framework 3.0) Nov 2006
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 30))
return @"Release (.NET Framework 3.0) Nov 2006 or later";
//3.0.4506.25 yes(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007
if ((Major >= 3) && (Minor >= 5) && (Build >= 4506) && (Revision >= 25))
return @"(WAPRTM.004506 - 0026) Vista Ultimate, Jan 2007 or later";
//2.0.50727.4927 yes(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009
if ((Major >=2) && (Minor >=0) && (Build >= 50727) && (Revision >= 4927))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release, Oct 2009 or later";
//2.0.50727.4918(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4918))
return @"(NetFXspW7.050727 - 4900) / Windows 7 Release Candidate, June 2009 or later";
//2.0.50727.4200 yes(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 4200))
return @"(NetFxQFE.050727 - 4200).NET 2.0 SP2, KB974470, Securityupdate, Oct 2009 or later";
//2.0.50727.3603(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3603))
return @"(GDR.050727 - 3600).NET 4.0 Beta 2, Oct 2009 or later";
//2.0.50727.3082 yes(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3082))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update XP / W2003, Dez 2008, KB958481 or later";
//2.0.50727.3074 yes(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3074))
return @"(QFE.050727 - 3000), .NET 3.5 Family Update Vista / W2008, Dez 2008, KB958481 or later";
//2.0.50727.3053 yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3053))
return @"yes(netfxsp.050727 - 3000), .NET 2.0 SP2, Aug 2008 or later";
//2.0.50727.3031(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 3031))
return @"(netfxsp.050727 - 3000), .NET 2.0 SP2 Beta 1, May 2008 or later";
//2.0.50727.1434 yes(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1434))
return @"(REDBITS.050727 - 1400), Windows Server 2008 and Windows Vista SP1, Dez 2007 or later";
//2.0.50727.1433 yes(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007, http://www.microsoft.com/downloads/details.aspx?FamilyID=79bc3b77-e02c-4ad3-aacf-a7633f706ba5
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1433))
return @"(REDBITS.050727 - 1400), .NET 2.0 SP1 Release, Nov 2007 or later";
//2.0.50727.1378(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1378))
return @"(REDBITSB2.050727 - 1300), Orcas Beta2, Oct 2007 or later";
//2.0.50727.1366(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 1366))
return @"(REDBITS.050727 - 1300), Orcas Beta1, Mar 2007 or later";
//2.0.50727.867 yes(VS Express Edition 2005 SP1), Apr 2007, http://www.microsoft.com/downloads/details.aspx?FamilyId=7B0B0339-613A-46E6-AB4D-080D4D4A8C4E
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 867))
return @"(VS Express Edition 2005 SP1), Apr 2007 or later";
//2.0.50727.832(Fix x86 VC++2005), Apr 2007, http://support.microsoft.com/kb/934586/en-us
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 832))
return @"(Fix x86 VC++2005), Apr 2007 or later";
//2.0.50727.762 yes(VS TeamSuite SP1), http://www.microsoft.com/downloads/details.aspx?FamilyId=BB4A75AB-E2D4-4C96-B39D-37BAF6B5B1DC
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 762))
return @"(VS TeamSuite SP1) or later";
//2.0.50727.312 yes(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 312))
return @"(rtmLHS.050727 - 3100) Vista Ultimate, Jan 2007 or later";
//2.0.50727.42 yes Release (.NET Framework 2.0) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 42))
return @"Release (.NET Framework 2.0) Oct 2005 or later";
//2.0.50727.26 Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005
if ((Major >= 2) && (Minor >= 0) && (Build >= 50727) && (Revision >= 26))
return @"Version 2.0(Visual Studio Team System 2005 Release Candidate) Oct 2005 or later";
//2.0.50712 Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50712))
return @"Version 2.0(Visual Studio Team System 2005(Drop3) CTP) July 2005 or later";
//2.0.50215 Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215))
return @"Version 2.0(WinFX SDK for Indigo / Avalon 2005 CTP) July 2005 or later";
//2.0.50601.0 Version 2.0(Visual Studio.NET 2005 CTP) June 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50601) && (Revision >=0))
return @"Version 2.0(Visual Studio.NET 2005 CTP) June 2005 or later";
//2.0.50215.44 Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50215) && (Revision >= 44))
return @"Version 2.0(Visual Studio.NET 2005 Beta 2, Visual Studio Express Beta 2) Apr 2005 or later";
//2.0.50110.28 Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005
if ((Major >=2) && (Minor >=0) && (Build >= 50110) && (Revision >=28))
return @"Version 2.0(Visual Studio.NET 2005 CTP, Professional Edition) Feb 2005 or later";
//2.0.41115.19 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004
if ((Major >=2 ) && (Minor >=0 ) && (Build >= 41115) && (Revision >= 19))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Dec 2004 or later";
//2.0.40903.0 Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40903) && (Revision >=0))
return @"Version 2.0(Whidbey CTP, Visual Studio Express) Oct 2004 or later";
//2.0.40607.85 Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 *
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 85))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, Team System Refresh) Aug 2004 * or later";
//2.0.40607.42 Version 2.0(SQL Server Yukon Beta 2) July 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 42))
return @"Version 2.0(SQL Server Yukon Beta 2) July 2004 or later";
//2.0.40607.16 Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004
if ((Major >=2) && (Minor >=0) && (Build >= 40607) && (Revision >= 16))
return @"Version 2.0(Visual Studio.NET 2005 Beta 1, TechEd Europe 2004) June 2004 or later";
//2.0.40301.9 Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 *
if ((Major >=0) && (Minor >=0) && (Build >= 40301) && (Revision >=9))
return @"Version 2.0(Whidbey CTP, WinHEC 2004) March 2004 * or later";
//1.2.30703.27 Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 *
if ((Major >=1) && (Minor >=2) && (Build >= 30703) && (Revision >= 27))
return @"Version 1.2(Whidbey Alpha, PDC 2004) Nov 2003 * or later";
//1.2.21213.1 Version 1.2(Whidbey pre - Alpha build) *
if ((Major >=1) && (Minor >=2) && (Build >= 21213) && (Revision >=1))
return @"Version 1.2(Whidbey pre - Alpha build) * or later";
//1.1.4322.2443 yes Version 1.1 Servicepack 1, KB953297, Oct 2009
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >=2443))
return @"Version 1.1 Servicepack 1, KB953297, Oct 2009 or later";
//1.1.4322.2407 yes Version 1.1 RTM
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 RTM or later";
//1.1.4322.2407 Version 1.1 Orcas Beta2, Oct 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2407))
return @"Version 1.1 Orcas Beta2, Oct 2007 or later";
//1.1.4322.2379 Version 1.1 Orcas Beta1, Mar 2007
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2379))
return @"Version 1.1 Orcas Beta1, Mar 2007 or later";
//1.1.4322.2032 yes Version 1.1 SP1 Aug 2004
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 2032))
return @"Version 1.1 SP1 Aug 2004 or later";
//1.1.4322.573 yes Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 573))
return @"Version 1.1 RTM(Visual Studio.NET 2003 / Windows Server 2003) Feb 2003 * or later";
//1.1.4322.510 Version 1.1 Final Beta Oct 2002 *
if ((Major >=1) && (Minor >=1) && (Build >= 4322) && (Revision >= 510))
return @"Version 1.1 Final Beta Oct 2002 * or later";
//1.0.3705.6018 yes Version 1.0 SP3 Aug 2004
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 6018))
return @"Version 1.0 SP3 Aug 2004 or later";
//1.0.3705.288 yes Version 1.0 SP2 Aug 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >= 288))
return @"Version 1.0 SP2 Aug 2002 * or later";
//1.0.3705.209 yes Version 1.0 SP1 Mar 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=209))
return @"Version 1.0 SP1 Mar 2002 * or later";
//1.0.3705.0 yes Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 *
if ((Major >=1) && (Minor >=0) && (Build >= 3705) && (Revision >=0))
return @"Version 1.0 RTM(Visual Studio.NET 2002) Feb 2002 * or later";
//1.0.3512.0 Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3)
if ((Major >=1) && (Minor >=0) && (Build >= 3512) && (Revision >=0))
return @"Version 1.0 Pre - release RC3(Visual Studio.NET 2002 RC3) or later";
//1.0.2914.16 Version 1.0 Public Beta 2 Jun 2001 *
if ((Major >=1) && (Minor >=0) && (Build >= 2914) && (Revision >= 16))
return @"Version 1.0 Public Beta 2 Jun 2001 * or later";
//1.0.2204.21 Version 1.0 Public Beta 1 Nov 2000 *
if ((Major >=1) && (Minor >=0) && (Build >= 2204) && (Revision >=21))
return @"Version 1.0 Public Beta 1 Nov 2000 * or later";
return @"Unknown .NET version";
}
}
}
#9
2
public class DA {
public static class VersionNetFramework {
public static string Get45or451FromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
return (@"Version: " + CheckFor45DotVersion(releaseKey));
}
}
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
private static string CheckFor45DotVersion(int releaseKey)
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
if (releaseKey >= 394271)
return "4.6.1 installed on all other Windows OS versions or later";
if (releaseKey >= 394254)
return "4.6.1 installed on Windows 10 or later";
if (releaseKey >= 393297)
return "4.6 installed on all other Windows OS versions or later";
if (releaseKey >= 393295)
return "4.6 installed with Windows 10 or later";
if (releaseKey >= 379893)
return "4.5.2 or later";
if (releaseKey >= 378758)
return "4.5.1 installed on Windows 8, Windows 7 SP1, or Windows Vista SP2 or later";
if (releaseKey >= 378675)
return "4.5.1 installed with Windows 8.1 or later";
if (releaseKey >= 378389)
return "4.5 or later";
return "No 4.5 or later version detected";
}
public static string GetVersionFromRegistry()
{//https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
string res = @"";
// Opens the registry key for the .NET Framework entry.
using (RegistryKey ndpKey =
RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "").
OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
{
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
foreach (string versionKeyName in ndpKey.GetSubKeyNames())
{
if (versionKeyName.StartsWith("v"))
{
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name = (string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (versionKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
}
if (name != "")
{
continue;
}
foreach (string subKeyName in versionKey.GetSubKeyNames())
{
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name = (string)subKey.GetValue("Version", "");
if (name != "")
sp = subKey.GetValue("SP", "").ToString();
install = subKey.GetValue("Install", "").ToString();
if (install == "") //no install info, must be later.
res += (versionKeyName + " " + name) + Environment.NewLine;
else
{
if (sp != "" && install == "1")
{
res += (" " + subKeyName + " " + name + " SP" + sp) + Environment.NewLine;
}
else if (install == "1")
{
res += (" " + subKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
return res;
}
public static string GetUpdateHistory()
{//https://msdn.microsoft.com/en-us/library/hh925567(v=vs.110).aspx
string res=@"";
using (RegistryKey baseKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\Updates"))
{
foreach (string baseKeyName in baseKey.GetSubKeyNames())
{
if (baseKeyName.Contains(".NET Framework") || baseKeyName.StartsWith("KB") || baseKeyName.Contains(".NETFramework"))
{
using (RegistryKey updateKey = baseKey.OpenSubKey(baseKeyName))
{
string name = (string)updateKey.GetValue("PackageName", "");
res += baseKeyName + " " + name + Environment.NewLine;
foreach (string kbKeyName in updateKey.GetSubKeyNames())
{
using (RegistryKey kbKey = updateKey.OpenSubKey(kbKeyName))
{
name = (string)kbKey.GetValue("PackageName", "");
res += (" " + kbKeyName + " " + name) + Environment.NewLine;
if (kbKey.SubKeyCount > 0)
{
foreach (string sbKeyName in kbKey.GetSubKeyNames())
{
using (RegistryKey sbSubKey = kbKey.OpenSubKey(sbKeyName))
{
name = (string)sbSubKey.GetValue("PackageName", "");
if (name == "")
name = (string)sbSubKey.GetValue("Description", "");
res += (" " + sbKeyName + " " + name) + Environment.NewLine;
}
}
}
}
}
}
}
}
}
return res;
}
}
using class DA.VersionNetFramework
使用类DA.VersionNetFramework
private void Form1_Shown(object sender, EventArgs e)
{
//
// Current OS Information
//
richTextBox1.Text = @"Current OS Information:";
richTextBox1.AppendText(Environment.NewLine +
"Machine Name: " + Environment.MachineName);
richTextBox1.AppendText(Environment.NewLine +
"Platform: " + Environment.OSVersion.Platform.ToString());
richTextBox1.AppendText(Environment.NewLine +
Environment.OSVersion);
//
// .NET Framework Environment Information
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Environment Information:");
richTextBox1.AppendText(Environment.NewLine +
"Environment.Version " + Environment.Version);
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionDicription());
//
// .NET Framework Information From Registry
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
".NET Framework Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetVersionFromRegistry());
//
// .NET Framework 4.5 or later Information From Registry
//
richTextBox1.AppendText(Environment.NewLine +
".NET Framework 4.5 or later Information From Registry:");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.Get45or451FromRegistry());
//
// Update History
//
richTextBox1.AppendText(Environment.NewLine + Environment.NewLine +
"Update History");
richTextBox1.AppendText(Environment.NewLine +
DA.VersionNetFramework.GetUpdateHistory());
//
// Setting Cursor to first character of textbox
//
if (!richTextBox1.Text.Equals(""))
{
richTextBox1.SelectionStart = 1;
}
}
Result:
结果:
Current OS Information: Machine Name: D1 Platform: Win32NT Microsoft Windows NT 6.2.9200.0
当前操作系统信息:机器名称:D1平台:Win32NT微软windowsnt6.2.9200.0
.NET Framework Environment Information: Environment.Version 4.0.30319.42000 .NET 4.6 on Windows 8.1 64 - bit or later
。net框架环境信息:环境。版本4.0.30319.42000。net 4.6的Windows 8.1 64位或更高版本
.NET Framework Information From Registry: v2.0.50727 2.0.50727.4927 SP2 v3.0 3.0.30729.4926 SP2 v3.5 3.5.30729.4926 SP1
.NET框架信息来自Registry: v2.0.50727 2.0.50727.4927 SP2 v3.0 3.0.30729.4926 SP2 v3.5 3.5.30729.4926 SP1
v4
Client 4.6.00079 Full 4.6.00079 v4.0
Client 4.0.0.0
v4客户端4.6.00079 Full 4.6.00079 v4.0客户端4.0.0
.NET Framework 4.5 or later Information From Registry: Version: 4.6 installed with Windows 10 or later
.NET Framework 4.5或更高版本的注册表信息:版本:4.6安装了Windows 10或更高版本
Update History Microsoft .NET Framework 4 Client Profile
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Extended
KB2468871
KB2468871v2
KB2478063
KB2533523
KB2544514
KB2600211
KB2600217
Microsoft .NET Framework 4 Multi-Targeting Pack
KB2504637 Update for (KB2504637)
更新历史Microsoft .NET Framework 4客户端配置文件KB2468871 KB2468871v2 KB2478063 KB2533523 KB2544514 KB2600211 KB2600211 KB2600217 Microsoft Framework 4 Extended KB2468871 KB2468871v2 KB2478063 2533563 KB2533523 kb2534514kb2544514kb2544514kb2542542542544514kb26002914kb260024002900290029002900kb24kb2400290029002900290029002900290024 kb240029002900290029 kb240029002900290024 kb2400290026002900290029微软框架
#10
2
This class allows your application to throw out a graceful notification message rather than crash and burn if it couldn't find the proper .NET version. All you need to do is this in your main code:
这个类允许应用程序抛出一个优雅的通知消息，而不是崩溃和烧伤，如果它找不到合适的。net版本。你所需要做的就是在你的主代码中:
[STAThread]
static void Main(string[] args)
{
if (!DotNetUtils.IsCompatible())
return;
. . .
}
By default it takes 4.5.2, but you can tweak it to your liking, the class (feel free to replace MessageBox with Console):
默认情况下需要4.5.2，但是您可以根据自己的喜好调整类(可以用控制台替换MessageBox):
public class DotNetUtils
{
public enum DotNetRelease
{
NOTFOUND,
NET45,
NET451,
NET452,
NET46,
NET461,
NET462,
NET47,
NET471
}
public static bool IsCompatible(DotNetRelease req = DotNetRelease.NET452)
{
DotNetRelease r = GetRelease();
if (r < req)
{
MessageBox.Show(String.Format("This this application requires {0} or greater.", req.ToString()));
return false;
}
return true;
}
public static DotNetRelease GetRelease(int release = default(int))
{
int r = release != default(int) ? release : GetVersion();
if (r >= 461308) return DotNetRelease.NET471;
if (r >= 460798) return DotNetRelease.NET47;
if (r >= 394802) return DotNetRelease.NET462;
if (r >= 394254) return DotNetRelease.NET461;
if (r >= 393295) return DotNetRelease.NET46;
if (r >= 379893) return DotNetRelease.NET452;
if (r >= 378675) return DotNetRelease.NET451;
if (r >= 378389) return DotNetRelease.NET45;
return DotNetRelease.NOTFOUND;
}
public static int GetVersion()
{
int release = 0;
using (RegistryKey key = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32)
.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
release = Convert.ToInt32(key.GetValue("Release"));
}
return release;
}
}
Easily extendable when they add a new version later on. I didn't bother with anything before 4.5 but you get the idea.
以后添加新版本时，很容易扩展。4。5之前我什么都没做，但你懂的。
#11
1
Update with .NET 4.6.2. Check Release value in the same registry as in previous responses:
与。net 4.6.2更新。在相同的注册表中检查发布值与以前的响应:
RegistryKey registry_key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full");
if (registry_key == null)
return false;
var val = registry_key.GetValue("Release", 0);
UInt32 Release = Convert.ToUInt32(val);
if (Release >= 394806) // 4.6.2 installed on all other Windows (different than Windows 10)
return true;
if (Release >= 394802) // 4.6.2 installed on Windows 10 or later
return true;
#12
1
I have changed Matt's class so it can be reused in any project without printing all its checks on Console and returning a simple string with correct max version installed.
我已经更改了Matt的类，这样它就可以在任何项目中重用，而无需在控制台打印所有的检查，并返回一个安装了正确的max版本的简单字符串。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
namespace MyNamespace
{
public class DotNetVersion
{
protected bool printVerification;
public DotNetVersion(){
this.printVerification=false;
}
public DotNetVersion(bool printVerification){
this.printVerification=printVerification;
}
public string getDotNetVersion(){
string maxDotNetVersion = getVersionFromRegistry();
if(String.Compare(maxDotNetVersion, "4.5") >= 0){
string v45Plus = get45PlusFromRegistry();
if(!string.IsNullOrWhiteSpace(v45Plus)) maxDotNetVersion = v45Plus;
}
log("*** Maximum .NET version number found is: " + maxDotNetVersion + "***");
return maxDotNetVersion;
}
protected string get45PlusFromRegistry(){
String dotNetVersion = "";
const string subkey = @"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full\";
using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey(subkey)){
if(ndpKey != null && ndpKey.GetValue("Release") != null){
dotNetVersion = checkFor45PlusVersion((int)ndpKey.GetValue("Release"));
log(".NET Framework Version: " + dotNetVersion);
}else{
log(".NET Framework Version 4.5 or later is not detected.");
}
}
return dotNetVersion;
}
// Checking the version using >= will enable forward compatibility.
protected string checkFor45PlusVersion(int releaseKey){
if(releaseKey >= 461308) return "4.7.1 or later";
if(releaseKey >= 460798) return "4.7";
if(releaseKey >= 394802) return "4.6.2";
if(releaseKey >= 394254) return "4.6.1";
if(releaseKey >= 393295) return "4.6";
if((releaseKey >= 379893)) return "4.5.2";
if((releaseKey >= 378675)) return "4.5.1";
if((releaseKey >= 378389)) return "4.5";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
log("No 4.5 or later version detected");
return "";
}
protected string getVersionFromRegistry(){
String maxDotNetVersion = "";
// Opens the registry key for the .NET Framework entry.
using(RegistryKey ndpKey = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, "")
.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\")){
// As an alternative, if you know the computers you will query are running .NET Framework 4.5
// or later, you can use:
// using(RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine,
// RegistryView.Registry32).OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\"))
string[] subKeyNnames = ndpKey.GetSubKeyNames();
foreach(string versionKeyName in subKeyNnames){
if(versionKeyName.StartsWith("v")){
RegistryKey versionKey = ndpKey.OpenSubKey(versionKeyName);
string name =(string)versionKey.GetValue("Version", "");
string sp = versionKey.GetValue("SP", "").ToString();
string install = versionKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){ //no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(versionKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
}
if(!string.IsNullOrWhiteSpace(name)){
continue;
}
string[] subKeyNames = versionKey.GetSubKeyNames();
foreach(string subKeyName in subKeyNames){
RegistryKey subKey = versionKey.OpenSubKey(subKeyName);
name =(string)subKey.GetValue("Version", "");
if(!string.IsNullOrWhiteSpace(name)){
sp = subKey.GetValue("SP", "").ToString();
}
install = subKey.GetValue("Install", "").ToString();
if(string.IsNullOrWhiteSpace(install)){
//no install info, must be later.
log(versionKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}else{
if(!string.IsNullOrWhiteSpace(sp) && "1".Equals(install)){
log(" " + subKeyName + " " + name + " SP" + sp);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
}
else if("1".Equals(install)){
log(" " + subKeyName + " " + name);
if(String.Compare(maxDotNetVersion, name) < 0) maxDotNetVersion = name;
} // if
} // if
} // for
} // if
} // foreach
} // using
return maxDotNetVersion;
}
protected void log(string message){
if(printVerification) Console.WriteLine(message);
}
} // class
}
#13
1
I tried to combine all the answers into a single whole.
我试着把所有的答案组合成一个整体。
Using:
使用:
NetFrameworkUtilities.GetVersion() will return the currently available Version of the .NET Framework at this time or null if it is not present.
getversion()此时将返回. net Framework当前可用的版本，如果不存在则返回null。
This example works in .NET Framework versions 3.5+. It does not require administrator rights.
这个例子适用于。net Framework 3.5+版本。它不需要管理员权限。
I want to note that you can check the version using the operators < and > like this:
我要注意的是，您可以使用操作符 <和> 来检查版本:
if (NetFrameworkUtilities.GetVersion() < new Version(4, 5))
{
MessageBox.Show("Your .NET Framework version is less than 4.5");
}
Code:
代码:
using System;
using System.Linq;
using Microsoft.Win32;
namespace Utilities
{
public static class NetFrameworkUtilities
{
public static Version GetVersion() => GetVersionHigher4() ?? GetVersionLowerOr4();
private static Version GetVersionLowerOr4()
{
var installedVersions = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP");
var versionNames = installedVersions?.GetSubKeyNames();
//version names start with 'v', eg, 'v3.5' which needs to be trimmed off before conversion
var text = versionNames?.LastOrDefault()?.Remove(0, 1);
if (string.IsNullOrEmpty(text))
{
return null;
}
return text.Contains('.')
? new Version(text)
: new Version(Convert.ToInt32(text), 0);
}
private static Version GetVersionHigher4()
{
using (var key = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
var value = key?.GetValue("Release");
if (value == null)
{
return null;
}
// Checking the version using >= will enable forward compatibility,
// however you should always compile your code on newer versions of
// the framework to ensure your app works the same.
var releaseKey = Convert.ToInt32(value);
if (releaseKey >= 461308) return new Version(4, 7, 1);
if (releaseKey >= 460798) return new Version(4, 7);
if (releaseKey >= 394747) return new Version(4, 6, 2);
if (releaseKey >= 394254) return new Version(4, 6, 1);
if (releaseKey >= 381029) return new Version(4, 6);
if (releaseKey >= 379893) return new Version(4, 5, 2);
if (releaseKey >= 378675) return new Version(4, 5, 1);
if (releaseKey >= 378389) return new Version(4, 5);
// This line should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return new Version(4, 5);
}
}
}
}
#14
0
Try this one:
试试这个:
string GetFrameWorkVersion()
{
return System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion();
}
#15
0
Little large, but looks like it is up-to-date to Microsoft oddities:
有点大，但看起来是微软最新的怪事:
public static class Versions
{
static Version
_NET;
static SortedList<String,Version>
_NETInstalled;
#if NET40
#else
public static bool VersionTry(String S, out Version V)
{
try
{
V=new Version(S);
return true;
}
catch
{
V=null;
return false;
}
}
#endif
const string _NetFrameWorkKey = "SOFTWARE\\Microsoft\\NET Framework Setup\\NDP";
static void FillNetInstalled()
{
if (_NETInstalled == null)
{
_NETInstalled = new SortedList<String, Version>(StringComparer.InvariantCultureIgnoreCase);
RegistryKey
frmks = Registry.LocalMachine.OpenSubKey(_NetFrameWorkKey);
string[]
names = frmks.GetSubKeyNames();
foreach (string name in names)
{
if (name.StartsWith("v", StringComparison.InvariantCultureIgnoreCase) && name.Length > 1)
{
string
f, vs;
Version
v;
vs = name.Substring(1);
if (vs.IndexOf('.') < 0)
vs += ".0";
#if NET40
if (Version.TryParse(vs, out v))
#else
if (VersionTry(vs, out v))
#endif
{
f = String.Format("{0}.{1}", v.Major, v.Minor);
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name).GetValue("Version"), out v))
#endif
{
if (!_NETInstalled.ContainsKey(f) || v.CompareTo(_NETInstalled[f]) > 0)
_NETInstalled[f] = v;
}
else
{ // parse variants
Version
best = null;
if (_NETInstalled.ContainsKey(f))
best = _NETInstalled[f];
string[]
varieties = frmks.OpenSubKey(name).GetSubKeyNames();
foreach (string variety in varieties)
#if NET40
if (Version.TryParse((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#else
if (VersionTry((string)frmks.OpenSubKey(name + '\\' + variety).GetValue("Version"), out v))
#endif
{
if (best == null || v.CompareTo(best) > 0)
{
_NETInstalled[f] = v;
best = v;
}
vs = f + '.' + variety;
if (!_NETInstalled.ContainsKey(vs) || v.CompareTo(_NETInstalled[vs]) > 0)
_NETInstalled[vs] = v;
}
}
}
}
}
}
} // static void FillNetInstalled()
public static Version NETInstalled
{
get
{
FillNetInstalled();
return _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
}
} // NETInstalled
public static Version NET
{
get
{
FillNetInstalled();
string
clr = String.Format("{0}.{1}", Environment.Version.Major, Environment.Version.Minor);
Version
found = _NETInstalled[_NETInstalled.Keys[_NETInstalled.Count-1]];
if(_NETInstalled.ContainsKey(clr))
return _NETInstalled[clr];
for (int i = _NETInstalled.Count - 1; i >= 0; i--)
if (_NETInstalled.Keys[i].CompareTo(clr) < 0)
return found;
else
found = _NETInstalled[_NETInstalled.Keys[i]];
return found;
}
} // NET
}
#16
0
As of version 4.5 Microsoft changed the way it stores the .NET Framework indicator in the registry. There official guidance on how to retrieve the .NET framework and the CLR versions can be found here: https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
在4.5版本中，微软改变了在注册表中存储。net框架指示器的方式。关于如何检索.NET框架和CLR版本的官方指导可以在这里找到:https://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
I am including modified version of their code to address the bounty question of how you determine the .NET framework for 4.5 and higher here:
我将包括他们代码的修改版本，以解决如何在这里为4.5或更高版本确定。net框架的问题:
using System;
using System.Reflection;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.Win32;
namespace *testing
{
class Program
{
static void Main(string[] args)
{
Dictionary<int, String> mappings = new Dictionary<int, string>();
mappings[378389] = "4.5";
mappings[378675] = "4.5.1 on Windows 8.1";
mappings[378758] = "4.5.1 on Windows 8, Windows 7 SP1, and Vista";
mappings[379893] = "4.5.2";
mappings[393295] = "4.6 on Windows 10";
mappings[393297] = "4.6 on Windows not 10";
using (RegistryKey ndpKey = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry32).OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
int releaseKey = Convert.ToInt32(ndpKey.GetValue("Release"));
if (true)
{
Console.WriteLine("Version: " + mappings[releaseKey]);
}
}
int a = Console.Read();
}
}
}
#17
0
This is the solution I landed on:
这就是我的解决方案:
private static string GetDotNetVersion()
{
var v4 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full", false)?.GetValue("Version");
if(v4 != null)
return v4;
var v35 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5", false)?.GetValue("Version");
if(v35 != null)
return v35;
var v3 = (string)Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0", false)?.GetValue("Version");
return v3 ?? "< 3";
}
#18
0
public static class DotNetHelper
{
public static Version InstalledVersion
{
get
{
string framework = null;
try
{
using (var ndpKey =
Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\NET Framework Setup\\NDP\\v4\\Full\\"))
{
if (ndpKey != null)
{
var releaseKey = ndpKey.GetValue("Release");
if (releaseKey != null)
{
framework = CheckFor45PlusVersion(Convert.ToInt32(releaseKey));
}
else
{
string[] versionNames = null;
using (var installedVersions =
Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\NET Framework Setup\NDP"))
{
if (installedVersions != null) versionNames = installedVersions.GetSubKeyNames();
}
try
{
if (versionNames != null && versionNames.Length > 0)
{
framework = versionNames[versionNames.Length - 1].Remove(0, 1);
}
}
catch (FormatException)
{
}
}
}
}
}
catch (SecurityException)
{
}
return framework != null ? new Version(framework) : null;
}
}
private static string CheckFor45PlusVersion(int releaseKey)
{
if (releaseKey >= 460798)
return "4.7";
if (releaseKey >= 394802)
return "4.6.2";
if (releaseKey >= 394254)
return "4.6.1";
if (releaseKey >= 393295)
return "4.6";
if (releaseKey >= 379893)
return "4.5.2";
if (releaseKey >= 378675)
return "4.5.1";
// This code should never execute. A non-null release key should mean
// that 4.5 or later is installed.
return releaseKey >= 378389 ? "4.5" : null;
}
}
#19
0
If your machine is connected to the internet, going to smallestdotnet, downloading and executing the .NET Checker is probably the easiest way.
如果你的机器连接到因特网，去smallestdotnet，下载和执行。net检查器可能是最简单的方法。
If you need the actual method to deterine the version look at its source on github, esp. the Constants.cs which will help you for .net 4.5 and later, where the Revision part is the relvant one:
如果您需要确定版本的实际方法，请查看github上的源代码，尤其是常量。cs，在。net 4.5和以后的版本中会对你有所帮助，其中修订部分是相关的:
{ int.MinValue, "4.5" },
{ 378389, "4.5" },
{ 378675, "4.5.1" },
{ 378758, "4.5.1" },
{ 379893, "4.5.2" },
{ 381029, "4.6 Preview" },
{ 393273, "4.6 RC1" },
{ 393292, "4.6 RC2" },
{ 393295, "4.6" },
{ 393297, "4.6" },
{ 394254, "4.6.1" },
{ 394271, "4.6.1" },
{ 394747, "4.6.2 Preview" },
{ 394748, "4.6.2 Preview" },
{ 394757, "4.6.2 Preview" },
{ 394802, "4.6.2" },
{ 394806, "4.6.2" },