C#停止线程的方法

本文实例讲述了c#停止线程的方法。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.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.windows.forms;
namespace winformapp
{
 public partial class form1 : form
 {
  system.threading.cancellationtokensource cancel = new system.threading.cancellationtokensource();
  system.threading.thread[] thread;
  int len = 2;
  public form1()
  {
   initializecomponent();
   thread = new system.threading.thread[len];
  }
  void runthread()
  {
   threadinvoke.seteventinvokevalue(richtextbox1, "即将开始运行线程.");
   system.threading.thread t = null;
   for (int i = 0; i < len; i++)
   {
    t = new system.threading.thread(new system.threading.threadstart(sample));
    t.name = "thread_0" + i.tostring();
    t.isbackground = true;
    thread.setvalue(t, i);
    t.start();
   }
  }
  void sample()
  {
   string name = system.threading.thread.currentthread.name;
   threadinvoke.seteventinvokevalue(richtextbox1, "正在运行线程：" + name);
   while (true)
   {
    if (cancel.iscancellationrequested)
    {
     threadinvoke.seteventinvokevalue(richtextbox1, "线程：" + name + " 停止运行...");
     //线程被终止后回调
     cancel.token.register(delegate
     {
      threadinvoke.seteventinvokevalue(richtextbox1, "线程：" + name + " 停止运行之后的回调函数...");
     });
     break;
    }
   }
  }
  void showstatu()
  {
   stringbuilder sb = new stringbuilder();
   for (int i = 0; i < len; i++)
   {
    if (thread[i].isalive == true)
    {
     sb.appendline("线程：" + thread[i].name.tostring() + " 还在运行...");
    }
   }
   if (sb.tostring() == "")
   {
    sb.appendline("线程已经全部停止...");
   }
   richtextbox1.text += sb.tostring();
  }
  /// <summary>
  /// 开始运行线程
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  private void button1_click(object sender, eventargs e)
  {
   runthread();
  }
  /// <summary>
  /// 显示所有的线程状态
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  private void button2_click(object sender, eventargs e)
  {
   showstatu();
  }
  /// <summary>
  /// 终止所有的线程
  /// </summary>
  /// <param name="sender"></param>
  /// <param name="e"></param>
  private void button3_click(object sender, eventargs e)
  {
   cancel.cancel();
  }
 }
}

希望本文所述对大家的c#程序设计有所帮助。