using System.Reflection.PropertyInfo类较熟悉,帮我看个例题.

[sageking2]

using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;

namespace PropertyInfo类           
{
    class MyPropertyInfo
    {
        static void Main(string[] args)
        {
            Console.WriteLine("\nReflection.PropertyInfo");
            Myproperty Myproperty = new Myproperty(); //实例化一个对象并且把类名覆盖了
            Type MyType = Type.GetType("Myproperty"); //定义MyType获取Myproperty的类型
            PropertyInfo MyPropertyInfo = MyType.GetProperty("Caption"); //报错：要实例化
            Console.Write("\nGetValue= " + MyPropertyInfo.GetValue(Myproperty,null));

            MyPropertyInfo.SetValue(Myproperty,"This caption has been changed",null);
            Console.Write("\n"+MyType.FullName+"."+MyPropertyInfo.Name +" has a PropertyType of "+MyPropertyInfo.PropertyType);
            Console.Write("\nGetValue - "+MyPropertyInfo.GetValue(Myproperty,null));

            MethodInfo Mygetmethodinfo = MyPropertyInfo.GetSetMethod();
            Console.Write("\nSetAccessor for "+ MyPropertyInfo.Name+" returns a "+Mygetmethodinfo.ReturnType);
            Console.Write("\n\n"+MyType.FullName+"."+MyPropertyInfo.Name+" GetSetMethod - "+MyPropertyInfo.GetSetMethod());

            Console.Read();
        }
    }

    public class Myproperty
    {
        private string caption = "A Default caption";
        public string Caption
        {
            get
            {
                return caption;
            }
            set
            {
                if (caption != value)
                {
                    caption = value;
                }
            }
        }
    }

}

因为这个例题的命名比较变态,报错居然是缺少实例化,难道是我漏了某行?我真的找不出哪错了.

[sageking2]

Thank$!

[lalac]

这一句有问题：

Type MyType = Type.GetType("Myproperty"); //定义MyType获取Myproperty的类型

这里GetType传入参数指的是type名，需要的是全名，就是[namespace].[typename]的样子。
lz可以这样改：

Type MyType = Type.GetType("PropertyInfo类.Myproperty"); //定义MyType获取Myproperty的类型

或者

Type MyType = typeof(Myproperty); //Type.GetType("Myproperty"); //定义MyType获取Myproperty的类型