如何在SilverLight中的某个时间(500毫秒)调用某些方法

Question

我有两种方法,例如Method1和Method2.在Method1完成后如何调用Method2 500ms？

 public void Method1()
 {

 }

 public void Method2()
 {

 }

Answer 1

使用Timer或BackgroundWorker.除非你想在UI线程上做一些事情,否则Timer可能最适合你的简短描述,在这种情况下,DispatchTimer在你回调UI线程时更适合你.

例:

  public void Run_Method1_Then_Method2_500_Milliseconds_Later()
  {
      DispatcherTimer timer = new DispatcherTimer();
      timer.Interval = TimeSpan.FromMilliseconds(500);
      timer.Tick += (s, e) =>
      {
          // do some quick work here in Method2
          Method2(timer);
      };

      Method1();      // Call Method1 and wait for completion
      timer.Start();  // Start Method2 500 milliseconds later
  }

  public void Method1()
  {
      // Do some work here
  }

  public void Method2(DispatcherTimer timer)
  {
      // Stop additional timer events
      timer.Stop();
      // Now do some work here
  }