C#自定义事件及用法实例

using System;
namespace TestEventArgs
{
 /// <summary>
 /// 这个类对应于EventArgs，做对比学习。
 /// 添加两个内容：info1，info2。
 /// </summary>
 public class MyEventArgs : EventArgs
 {
  private String info1;
  private UInt32 info2;
  public MyEventArgs(String info1, UInt32 info2)
  {
   this.info1 = info1;
   this.info2 = info2;
  }
  public String Info1
  {
   get { return this.info1; }
   set { this.info1 = value; }
  }
  public UInt32 Info2
  {
   get { return this.info2; }
   set { this.info2 = value; }
  }
 }
 /// <summary>
 /// 仿真Button按钮
 /// </summary>
 public class MyButton
 {
  public delegate void MyEvnetHandler(object sender, MyEventArgs e);
  /// <summary>
  /// 按钮点击的次数计数器
  /// </summary>
  public static UInt32 clicked_num = 0;
  public event MyEvnetHandler MyClick;
  public void 触发()
  {
   MyEventArgs arg = new MyEventArgs(DateTime.UtcNow.ToString(), ++clicked_num);
   MyClick(this, arg);
  }
 }
 /// <summary>
 /// 仿真Form窗体
 /// </summary>
 public class MyForm
 {
  public MyButton 按钮;
  public MyForm()
  {
   按钮 = new MyButton();
   按钮.MyClick += new MyButton.MyEvnetHandler(this.button_Clicked);
  }
  public void button_Clicked(object sender, MyEventArgs e)
  {
   Console.WriteLine("button clicked(sender is:" + sender.ToString() + "; info1 = "
    + e.Info1 + "; info2 = " + e.Info2);
  }
 }
 class Program
 {
  static void Main(string[] args)
  {
   MyForm 窗体 = new MyForm();
   for (int i = 0; i < 10; i++ )
   {
    窗体.按钮.触发();
    System.Threading.Thread.Sleep(500);
   }
   Console.WriteLine("Press any key to continue...");
   Console.ReadKey();
  }
 }
}