Silverlight 计时器

代码

   
     

    
      
    
      public
    
       
    
      partial
    
       
    
      class
    
       MainPage : UserControl
{

    
      int
    
       i 
    
      =
    
       
    
      1
    
      ;
TextBlock myTextBlock;

    
      public
    
       MainPage()
{
 InitializeComponent();
 myTextBlock 
    
      =
    
       
    
      new
    
       TextBlock();
 myTextBlock.Loaded 
    
      +=
    
       
    
      this
    
      .StartTimer;
 myTextBlock.Margin 
    
      =
    
       
    
      new
    
       Thickness(
    
      30
    
      );
 LayoutRoot.Children.Add(myTextBlock);
}

    
      public
    
       
    
      void
    
       StartTimer(
    
      object
    
       o, RoutedEventArgs sender)
{
 
    
      //
    
      创建计时器
    
      

    
       System.Windows.Threading.DispatcherTimer myDispatcherTimer 
    
      =
    
       
    
      new
    
       System.Windows.Threading.DispatcherTimer();
 
    
      //
    
      创建间隔时间
    
      

    
       myDispatcherTimer.Interval 
    
      =
    
       
    
      new
    
       TimeSpan(
    
      0
    
      ,
    
      0
    
      ,
    
      0
    
      ,
    
      1
    
      ); 
 
    
      //
    
      创建到达间隔时间后需执行的函数
    
      

    
       myDispatcherTimer.Tick 
    
      +=
    
       
    
      new
    
       EventHandler(Each_Tick);
 
    
      //
    
      开启计时器
    
      

    
       myDispatcherTimer.Start();
}


    
      public
    
       
    
      void
    
       Each_Tick(
    
      object
    
       o, EventArgs sender)
{
 myTextBlock.Text 
    
      =
    
       i
    
      ++
    
      .ToString() 
    
      +
    
       
    
      "
    
       秒
    
      "
    
      ;
}
}