访问数据库的OLEDB连接(accdb)

I want to make a simple application for an exercise, so it could be nice to connect to a simple database like Access (.accdb)

我想为一个练习创建一个简单的应用程序，这样连接到一个简单的数据库(如Access (.accdb))就很好了

My program looks like this:

我的程序是这样的:

using System;
using System.Collections.Generic; 
using System.Data;
using System.Data.OleDb;
using System.Linq;
using System.Web;

namespace myProject.Account
{
    public class DbManager
    {
       private OleDbConnection _dbConnection;

       public void OpenDbConnection()
       {
        _dbConnection = new OleDbConnection {ConnectionString = GetConnectionString()};
       }

       private string GetConnectionString()
       {
        return "Provider=Microsoft.ACE.OLEDB.14.0;Data Source=exercise1.accdb";
       }

       public void CloseDbConnection()
       {
        _dbConnection.Close();
       }

       public void GetUser()
       {
        DataSet myDataSet = new DataSet();
        var myAdapptor = new OleDbDataAdapter();
        OleDbCommand command = new OleDbCommand("SELECT * FROM tblUser", _dbConnection);
        myAdapptor.SelectCommand = command;
        myAdapptor.Fill(myDataSet, "tblUser");
       } 

    }
  }

I using Visual Studio 2010. When I test my application by using the built in debug mode "Start without Debugging" (CTRL+F5) I get this error:

我使用Visual Studio 2010。当我用“开始不调试”(CTRL+F5)来测试我的应用程序时，我得到了这个错误:

The 'Microsoft.ACE.OLEDB.14.0' provider is not registered on the local machine.

“microsoft.ac . oledb .14.0”提供程序没有在本地机器上注册。

I have tried to download and install "Microsoft Access Database Engine 2010 Redistributable" (64 bit) from Microsoft omepage: http://www.microsoft.com/download/en/details.aspx?id=13255

我尝试从Microsoft omepage下载并安装“Microsoft Access Database Engine 2010 Redistributable”(64位):http://www.microsoft.com/download/en/details.aspx?

Unfortunately it sah not solved the problem. I still got the error when the myAdapptor.Fill() is executed. What is wrong?

不幸的是，它没有解决这个问题。当执行myadapptorr . fill()时，仍然会出现错误。是什么错了吗?

4 个解决方案

#1

You need the Access 2007 Runtime.

您需要访问2007运行时。

#2

For others that are interested in my solution, I figured out that Microsoft.ACE.OLEDB.14.0 is not supported for Access 2010. Instead I used Microsoft.ACE.OLEDB.12.0

对于其他对我的解决方案感兴趣的人，我发现microsoft . ac . oledb .14.0不支持Access 2010。相反,我使用Microsoft.ACE.OLEDB.12.0

You can download their "2007 Office System Driver: Data Connectivity Components" from this site: 2007 Office System Driver: Data Connectivity Components

您可以从这个站点下载他们的“2007办公系统驱动程序:数据连接组件”:2007办公系统驱动程序:数据连接组件

#3

Had a similar problem but just a plan old mdb in my case. Provider=Microsoft.Jet.OLEDB.4.0 does the trick for that, no need to download any extra runtimes.

我也遇到过类似的问题，但只是计划旧的mdb。这样做的诀窍是，不需要下载任何额外的运行时。

#4

add using System.Data.OleDb library.

使用System.Data添加。OleDb图书馆。

now for the connection string

现在是连接字符串

OleDbConnection con = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\Users\\Aishwar NIGAM\\Documents\\indianOil.accdb");

#1