委托最简单的例子

委托实现:

public class EventClass

{

private string _outstring

{

get

{

return OutString;

}

set

{

value = OutString;

}

}

public string OutString;

public delegate void MyHandler(object sender, System.EventArgs e);

public void Myfunc1(object sender, System.EventArgs e)

{

OutString += "1";// sender.ToString();

}

public void Myfunc2(object sender, System.EventArgs e)

{

OutString += "2";// e.ToString();

}

public event MyHandler Myevent;

public EventClass()

{

Myevent += Myfunc1;

Myevent += Myfunc2;

}

public void RefAction(object sender, System.EventArgs e)

{

Myevent(sender, e);

}

}

委托调用:

EventClass ecls = new EventClass();

ecls.RefAction(sender, e);

button1.Text = ecls.OutString;