WPF中button按钮同时点击多次触发click解决方法

解决wpf中button按钮同时点击多次触发click的方法，供大家参考，具体内容如下

  datetime lastclick = datetime.now;
  object obj = new object();
  int i = 0;
  private void button_click(object sender, routedeventargs e)
  {
   this.isenabled = false;  
   var t = (datetime.now - lastclick).totalmilliseconds;
   i++;
   lastclick = datetime.now;
   system.diagnostics.debug.print(t + "," + i + ";" + datetime.now);
   thread.sleep(2000);   
   this.isenabled = true;
  }

以上代码并没法解决用户点击两次按钮触发两次的问题,因为ui线程是单线程的,所以这个这样会导致用户连续点击两次,会两秒后又调用button_click一次,输出如下:

1207.069,1;2017年4月19日 13:58:22
2055.1176,2;2017年4月19日 13:58:24

所以要在this.isenabled = false;后面强制界面刷新,代码如下:

private void button_click(object sender, routedeventargs e)
  {
   this.isenabled = false;
   dispatcherhelper.doevents();
   var t = (datetime.now - lastclick).totalmilliseconds;
   i++;
   lastclick = datetime.now;
   system.diagnostics.debug.print(t + "," + i + ";" + datetime.now);
   thread.sleep(2000);   
   this.isenabled = true;
  }
  public static class dispatcherhelper
  {
   [securitypermissionattribute(securityaction.demand, flags = securitypermissionflag.unmanagedcode)]
   public static void doevents()
   {
    dispatcherframe frame = new dispatcherframe();
    dispatcher.currentdispatcher.begininvoke(dispatcherpriority.background, new dispatcheroperationcallback(exitframes), frame);
    try { dispatcher.pushframe(frame); }
    catch (invalidoperationexception) { }
   }
   private static object exitframes(object frame)
   {
    ((dispatcherframe)frame).continue = false;
    return null;
   }
  }

dispatcherhelper.doevents();这个方法会强制界面刷新，问题就解决了。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。