一个C#高级编程中的事件 DEMO 实例,C#高级编程中的例子,讲的是事件DEMO,一起来看看吧。
using System; 
  using System.Collections.Generic; 
  using System.Text; 
  namespace ConsoleApplication1 
  { 
  class Program 
  { 
  /// 
  /// 发生一个事件:用户选择了一个选项 
  /// 响应是1:用户得到想要的结果 
  /// 2:老板得到是否有用户在看他的信息 
  /// 
  /// 即:多点委托[显示结果,提示老板] 
  /// 
  /// 
  static void Main(string[] args) 
  { 
  //UserInputMonitor 的成员userInputRequest 事件 
  UserInputMonitor uim = new UserInputMonitor(); 
  //为userInputRequest绑定2个方法 
  UserView uv = new UserView(uim); 
  person p = new person(uim); 
  //run方法里面会提示用户来促发userInputRequest 事件 
  uim.Run(); 
  } 
  } 
  } 
  using System; 
  using System.Collections.Generic; 
  using System.Text; 
  namespace ConsoleApplication1 
  { 
  class UserInputMonitor 
  { 
  public delegate void userInputRequest(object send,UserEventArgs e); 
  public event userInputRequest onUserInputRequest; 
  public void Run() 
  { 
  //不同的促发情况 
  //UserEventArgs 带上了用户选择的信息 
  while (true) 
  { 
  System.Console.WriteLine("input p:[look personal ]"); 
  System.Console.WriteLine("input c:[look company]"); 
  System.Console.WriteLine("input e:[exit ]"); 
  string input = System.Console.ReadLine(); 
  if (input.ToLower() == "p") 
  onUserInputRequest(this, new UserEventArgs(RequestType.Personal)); 
  else if (input.ToLower() == "c") 
  onUserInputRequest(this, new UserEventArgs(RequestType.Company)); 
  else if (input.ToLower() == "e") 
  return; 
  else 
  continue; 
  } 
  } 
  } 
  } 
  using System; 
  using System.Collections.Generic; 
  using System.Text; 
  namespace ConsoleApplication1 
  { 
  enum RequestType{ 
  Personal, 
  Company 
  } 
  /// 
  /// 携带了用户选择信息的EventArgs 
  /// 
  class UserEventArgs : EventArgs 
  { 
  private RequestType reqType; 
  public RequestType GetRequestType 
  { 
  get 
  { 
  return this.reqType; 
  } 
  } 
  public UserEventArgs(RequestType t) 
  { 
  this.reqType = t; 
  } 
  } 
  } 
  using System; 
  using System.Collections.Generic; 
  using System.Text; 
  namespace ConsoleApplication1 
  { 
  /// 
  /// 绑定一个事件 
  /// 
  class UserView 
  { 
  public UserView(UserInputMonitor uim) 
  { 
  uim.onUserInputRequest += new UserInputMonitor.userInputRequest(uim_onUserInputRequest); 
  } 
  protected void uim_onUserInputRequest(object send, UserEventArgs e) 
  { 
  if (e.GetRequestType == RequestType.Company) 
  System.Console.WriteLine("company is best!!"); 
  if(e.GetRequestType == RequestType.Personal) 
  System.Console.WriteLine("he is chinese!!"); 
  } 
  } 
  } 
  using System; 
  using System.Collections.Generic; 
  using System.Text; 
  namespace ConsoleApplication1 
  { 
  /// 
  /// 绑定一个事件 
  /// 
  class person 
  { 
  public person(UserInputMonitor uim) 
  { 
  uim.onUserInputRequest += new UserInputMonitor.userInputRequest(uim_onUserInputRequest); 
  } 
  protected void uim_onUserInputRequest(object send, UserEventArgs e) 
  { 
  if (e.GetRequestType == RequestType.Personal) 
  System.Console.WriteLine("somebody miss u!!"); 
  } 
  } 
  }