如何在SilverLight中的某个时间(500毫秒)调用某些方法

时间:2012-03-08 13:23:57

标签: c# silverlight silverlight-4.0 silverlight-3.0

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()
 {

 }

3 个答案:

答案 0 :(得分:6)

使用TimerBackgroundWorker。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更适合你,因为它在UI线程上回调。

实施例

  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
  }

答案 1 :(得分:1)

Task.Factory.StartNew( () => 
{
    Methdd1();
    Thread.Sleep(500);
    Method2();
});

修改

由于@spender突出显示此问题,此代码存在问题,可能导致线程不足(请参阅:http://msdn.microsoft.com/en-us/library/ff963549.aspx)。 @HiTech Magic建议的计时器似乎是一个更好的方法。

答案 2 :(得分:0)

System.Timers.Timer aTimer = new System.Timers.Timer(10000);
// Hook up the Elapsed event for the timer.
aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
// Set the Interval to 60 seconds (60000 milliseconds).
aTimer.Interval = 60000;
//for enabling for disabling the timer.
aTimer.Enabled = false;

private void OnTimedEvent(object source, ElapsedEventArgs e)
{
 //disable the timer
 aTimer.Enabled = false;
 Method2();
}
public void Method1()
{
 //some code
 aTimer.Enabled = true;
}
public void Method2()
{


}