C#自定义事件监听实现方法

本文实例讲述了C#自定义事件监听实现方法。分享给大家供大家参考。具体实现方法如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApp
{
 /// 

 /// 定义事件
 /// 
 class CustomEvent
 {
  /// 

  /// 定义委托
  /// 
  /// 
  /// 
  public delegate void UserRequest(object sender, EventArgs e);
  /// 

  /// 此委托类型的事件
  /// 
  public event UserRequest OnUserRequest;
  public CustomEvent()
  {
   UserEventMonitor uem = new UserEventMonitor(this);
  }
  public void DoRun()
  {
   bool flag = false;
   do
   {
    Console.WriteLine();
    Console.WriteLine("请输入：");
    string result = Console.ReadLine();
    if (result == "1")
    {
     if (onUserRequest != null)
      onUserRequest(this, new EventArgs());
    }
   } while (!flag);
  }
 }
 /// 

 /// 事件监听
 /// 
 class UserEventMonitor
 {
  public UserEventMonitor(CustomEvent cem)
  {
   // cem.onUserRequest += ShowMessage;
   cem.onUserRequest += delegate
   {
    Console.WriteLine("hello word!!");
   };
  }
  public void ShowMessage(object sender, EventArgs e)
  {
   Console.WriteLine("hello word!!");
  }
 }
 /// 

 /// 调用类
 /// 
 public class Run
 {
  static void Main(string[] args)
  {
   CustomEvent cem = new CustomEvent();
   cem.DoRun();
   Console.ReadLine();
  }
 }
}

希望本文所述对大家的C#程序设计有所帮助。