Reflect中MethodInfo使用方法

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

namespace MethodInfoInvokeDemo
{
public class ReflectTest
{
public void MethodWithNoParaNoReturn()
{
Console.WriteLine("不带参数且不返回值的方法");
}

public string MethodWithNoPara()
{
Console.WriteLine("不带参数且有返回值的方法");
return "MethodWithNoPara";
}

public string Method1(string str)
{
Console.WriteLine("带参数且有返回值的方法");
return str;
}

public string Method2(string str, int index)
{
Console.WriteLine("带参数且有返回值的方法");
return str + index.ToString();
}

public string Method3(string str, out string outStr)
{
outStr = "bbbb";
Console.WriteLine("带参数且有返回值的方法");
return str;
}

public static string StaticMethod()
{
Console.WriteLine("静态方法");
return "cccc";
}
}

class Program
{
static void Main(string[] args)
{
Type type = typeof(ReflectTest);
object reflectTest = Activator.CreateInstance(type);

//不带参数且不返回值的方法的调用
MethodInfo methodInfo = type.GetMethod("MethodWithNoParaNoReturn");
methodInfo.Invoke(reflectTest, null);

Console.WriteLine();

//不带参数且有返回值的方法的调用
methodInfo = type.GetMethod("MethodWithNoPara");
Console.WriteLine(methodInfo.Invoke(reflectTest, null).ToString());

Console.WriteLine();

//带参数且有返回值的方法的调用
methodInfo = type.GetMethod("Method1", new Type[]{typeof(string)});
Console.WriteLine(methodInfo.Invoke(reflectTest, new object[]{"测试"}).ToString());

Console.WriteLine();

//带多个参数且有返回值的方法的调用
methodInfo = type.GetMethod("Method2", new Type[] { typeof(string), typeof(int) });
Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", 100 }).ToString());

//Console.WriteLine();

//methodInfo = type.GetMethod("Method3", new Type[] { typeof(string), typeof(string) });
//string outStr = "";
//Console.WriteLine(methodInfo.Invoke(reflectTest, new object[] { "测试", outStr }).ToString());

Console.WriteLine();

//静态方法的调用
methodInfo = type.GetMethod("StaticMethod");
Console.WriteLine(methodInfo.Invoke(null, null).ToString());

Console.ReadKey();
}
}
}

posted @ 2012-12-06 20:10  94cool  阅读(8971)  评论(0编辑  收藏