简单适用的 .NET 事件实例代码

using System;

namespace ConsoleApplication1
{
    public delegate void MyDelegate();
    public interface IEvent
    {
        event MyDelegate MyEvent;
        void FireAway();
    }
    public class MyEventClass:IEvent
    {
        public event MyDelegate MyEvent;
        public void FireAway()
        {
            if(MyEvent!=null)
                MyEvent();
            else
                Console.WriteLine("MyEvent failed!  ");
        }
    }
    public class MainClass
    {
        static private void eventTest_A()
        {
            Console.WriteLine("call:  eventTest_A ");
            return;
        } 
        static private void eventTest_B()
        {
            Console.WriteLine("call:  eventTest_B ");
            Console.ReadLine();
            return;
        }
        static public void Main()
        {
            /*
             * 可以使用接口定义！
            IEvent iMy;
            iMy=new MyEventClass();
            iMy.FireAway();
            iMy.MyEvent +=new MyDelegate(f);
            iMy.MyEvent +=new MyDelegate(fl);
            iMy.FireAway();
            */

            MyEventClass myEvent=new MyEventClass();
            myEvent.FireAway();
            myEvent.MyEvent +=new MyDelegate(eventTest_A);
            myEvent.MyEvent +=new MyDelegate(eventTest_B);
            myEvent.FireAway();
        
        }
    }
}