如何在Storyboard完成後調用方法？

Question

我寫了下面的代碼：

public void name(object sender, RoutedEventArgs e) 
    { 
     DoubleAnimation myDoubleAnimation = new DoubleAnimation(); 
     myDoubleAnimation.From = 1.0; 
     myDoubleAnimation.To = 0.0; 
     myDoubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(0.2)); 

     sb1 = new Storyboard(); 
     sb1.Children.Add(myDoubleAnimation); 
     Storyboard.SetTargetName(myDoubleAnimation, one.Name); 
     Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath(Grid.OpacityProperty)); 
     sb1.Begin(this); 

     if (one.Opacity == 0) 
     { 
      Container_one.Children.Remove(one); 
     }  
    } 

但並不wwork正確。動畫工作正常，但刪除是錯誤的。我如何將Storyboard-End與調用方法結合起來？

Thnaks很多。

Answer 1

隨着故事板的執行是異步的，你需要添加一個「故事板完成」事件處理程序：

story.Completed += new EventHandler(Story_Completed); 

然後把你刪除代碼是：

private void Story_Completed(object sender, EventArgs e) 
{ 
    if (one.Opacity == 0) 
    { 
     Container_one.Children.Remove(one); 
    } 
} 

會執行這個操作當故事板完成時。