这篇文章的目的是介绍这样一种方式，就是在写一个函数的时候，传递的参数是object类型的，在这个函数里面想访问这个参数对象的某一属性值，我们知道这个属性值的name，但是一般情况下，object对象是没法获取具体属性的值的，所以用下面的方式可以获取。此文章为转载，原文在：http://lsyyxcn.blog.163.com/blog/static/22740531201002792629559/
/// <summary>
/// 反射操作辅助类
/// </summary>
public sealed class ReflectionUtil
{
private ReflectionUtil()
{
} private static BindingFlags bindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static; /**//// <summary>
/// 执行某个方法
/// </summary>
/// <param name="obj">指定的对象</param>
/// <param name="methodName">对象方法名称</param>
/// <param name="args">参数</param>
/// <returns></returns>
public static object InvokeMethod(object obj, string methodName, object[] args)
{
object objResult = null;
Type type = obj.GetType();
objResult = type.InvokeMember(methodName, bindingFlags | BindingFlags.InvokeMethod, null, obj, args);
return objResult;
} /**//// <summary>
/// 设置对象字段的值
/// </summary>
public static void SetField(object obj, string name, object value)
{
FieldInfo fieldInfo = obj.GetType().GetField(name, bindingFlags);
object objValue = Convert.ChangeType(value, fieldInfo.FieldType);
fieldInfo.SetValue(objValue, value);
} /**//// <summary>
/// 获取对象字段的值
/// </summary>
public static object GetField(object obj, string name)
{
FieldInfo fieldInfo = obj.GetType().GetField(name, bindingFlags);
return fieldInfo.GetValue(obj);
} /**//// <summary>
/// 设置对象属性的值
/// </summary>
public static void SetProperty(object obj, string name, object value)
{
PropertyInfo propertyInfo = obj.GetType().GetProperty(name, bindingFlags);
object objValue = Convert.ChangeType(value, propertyInfo.PropertyType);
propertyInfo.SetValue(obj, objValue, null);
} /**//// <summary>
/// 获取对象属性的值
/// </summary>
public static object GetProperty(object obj, string name)
{
PropertyInfo propertyInfo = obj.GetType().GetProperty(name, bindingFlags);
return propertyInfo.GetValue(obj, null);
} /**//// <summary>
/// 获取对象属性信息（组装成字符串输出）
/// </summary>
public static string GetProperties(object obj)
{
StringBuilder strBuilder = new StringBuilder();
PropertyInfo[] propertyInfos = obj.GetType().GetProperties(bindingFlags); foreach (PropertyInfo property in propertyInfos)
{
strBuilder.Append(property.Name);
strBuilder.Append(":");
strBuilder.Append(property.GetValue(obj, null));
strBuilder.Append("\r\n");
} return strBuilder.ToString();
}
} 反射操作辅助类ReflectionUtil测试代码：
public class TestReflectionUtil
{
public static string Execute()
{
string result = string.Empty;
result += "使用ReflectionUtil反射操作辅助类：" + "\r\n"; try
{
Person person = new Person();
person.Name = "wuhuacong";
person.Age = ;
result += DecriptPerson(person); person.Name = "Wade Wu";
person.Age = ;
result += DecriptPerson(person);
}
catch (Exception ex)
{
result += string.Format("发生错误:{0}！\r\n \r\n", ex.Message);
}
return result;
} public static string DecriptPerson(Person person)
{
string result = string.Empty; result += "name:" + ReflectionUtil.GetField(person, "name") + "\r\n";
result += "age" + ReflectionUtil.GetField(person, "age") + "\r\n"; result += "Name:" + ReflectionUtil.GetProperty(person, "Name") + "\r\n";
result += "Age:" + ReflectionUtil.GetProperty(person, "Age") + "\r\n"; result += "Say:" + ReflectionUtil.InvokeMethod(person, "Say", new object[] {}) + "\r\n"; result += "操作完成！\r\n \r\n"; return result;
}
}
/// <summary>
/// 反射操作辅助类
/// </summary>
public sealed class ReflectionUtil
{
private ReflectionUtil()
{
}
private static BindingFlags bindingFlags = BindingFlags.DeclaredOnly | BindingFlags.Public |
BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static;
/**//// <summary>
/// 执行某个方法
/// </summary>
/// <param name="obj">指定的对象</param>
/// <param name="methodName">对象方法名称</param>
/// <param name="args">参数</param>
/// <returns></returns>
public static object InvokeMethod(object obj, string methodName, object[] args)
{
object objResult = null;
Type type = obj.GetType();
objResult = type.InvokeMember(methodName, bindingFlags | BindingFlags.InvokeMethod, null, obj, args);
return objResult;
}
/**//// <summary>
/// 设置对象字段的值
/// </summary>
public static void SetField(object obj, string name, object value)
{
FieldInfo fieldInfo = obj.GetType().GetField(name, bindingFlags);
object objValue = Convert.ChangeType(value, fieldInfo.FieldType);
fieldInfo.SetValue(objValue, value);
}
/**//// <summary>
/// 获取对象字段的值
/// </summary>
public static object GetField(object obj, string name)
{
FieldInfo fieldInfo = obj.GetType().GetField(name, bindingFlags);
return fieldInfo.GetValue(obj);
}
/**//// <summary>
/// 设置对象属性的值
/// </summary>
public static void SetProperty(object obj, string name, object value)
{
PropertyInfo propertyInfo = obj.GetType().GetProperty(name, bindingFlags);
object objValue = Convert.ChangeType(value, propertyInfo.PropertyType);
propertyInfo.SetValue(obj, objValue, null);
}
/**//// <summary>
/// 获取对象属性的值
/// </summary>
public static object GetProperty(object obj, string name)
{
PropertyInfo propertyInfo = obj.GetType().GetProperty(name, bindingFlags);
return propertyInfo.GetValue(obj, null);
}
/**//// <summary>
/// 获取对象属性信息（组装成字符串输出）
/// </summary>
public static string GetProperties(object obj)
{
StringBuilder strBuilder = new StringBuilder();
PropertyInfo[] propertyInfos = obj.GetType().GetProperties(bindingFlags);
foreach (PropertyInfo property in propertyInfos)
{
strBuilder.Append(property.Name);
strBuilder.Append(":");
strBuilder.Append(property.GetValue(obj, null));
strBuilder.Append("\r\n");
}
return strBuilder.ToString();
}
}
反射操作辅助类ReflectionUtil测试代码：
public class TestReflectionUtil
{
public static string Execute()
{
string result = string.Empty;
result += "使用ReflectionUtil反射操作辅助类：" + "\r\n";
try
{
Person person = new Person();
person.Name = "wuhuacong";
person.Age = 20;
result += DecriptPerson(person);
person.Name = "Wade Wu";
person.Age = 99;
result += DecriptPerson(person);
}
catch (Exception ex)
{
result += string.Format("发生错误:{0}！\r\n \r\n", ex.Message);
}
return result;
}
public static string DecriptPerson(Person person)
{
string result = string.Empty;
result += "name:" + ReflectionUtil.GetField(person, "name") + "\r\n";
result += "age" + ReflectionUtil.GetField(person, "age") + "\r\n";
result += "Name:" + ReflectionUtil.GetProperty(person, "Name") + "\r\n";
result += "Age:" + ReflectionUtil.GetProperty(person, "Age") + "\r\n";
result += "Say:" + ReflectionUtil.InvokeMethod(person, "Say", new object[] {}) + "\r\n";
result += "操作完成！\r\n \r\n";
return result;
}
}