using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Threading;

namespace Teseweituo

{

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

}

public void print(string s)

{

MessageBox.Show(s);

}

public delegate void myprint(string s);

public event myprint myevent;

private void button4_Click(object sender, EventArgs e)

{

Thread t1;

t1 = new Thread(new ThreadStart(BackgroundProcess));

t1.Start();

}

private void BackgroundProcess()

{

myprint mp = new myprint(print);

print("委托调用");

myevent += new myprint(print);

myevent("事件触发调用");

 

this.BeginInvoke(myevent, "异步事件调用");

this.BeginInvoke(new myprint(print), "异步委托调用");

myevent -= new myprint(print);

}

}

}