WPF动画不播放

我有以下XAML显示旋转Ellipse：WPF动画不播放

<Ellipse x:Name="ellipse" 
     Stroke="{StaticResource _SpinnerGradientBrush}" 
     StrokeThickness="20"     
     RenderTransformOrigin="0.5,0.5"> 
    <Ellipse.RenderTransform> 
     <TransformGroup> 
      <RotateTransform Angle="0" /> 
     </TransformGroup> 
    </Ellipse.RenderTransform> 
    <Ellipse.Triggers> 
     <EventTrigger RoutedEvent="Ellipse.Loaded"> 
      <BeginStoryboard> 
       <Storyboard> 
        <DoubleAnimationUsingKeyFrames 
          Storyboard.TargetName="ellipse" 
          Storyboard.TargetProperty="(Ellipse.RenderTransform).(RotateTransform.Angle)" 
          Duration="0:0:4" 
          RepeatBehavior="Forever"> 
         <LinearDoubleKeyFrame Value="0" KeyTime="0:0:0" /> 
         <LinearDoubleKeyFrame Value="359" KeyTime="0:0:4" /> 
        </DoubleAnimationUsingKeyFrames> 
       </Storyboard> 
      </BeginStoryboard> 
     </EventTrigger> 
    </Ellipse.Triggers> 
</Ellipse>

窗口将显示为预期，但从未启动动画。我曾在Blend中工作，但由于某种原因，在我的应用程序中实际使用xaml时无法正常工作。如果有人有任何想法，我会很感激。

来源

2009-12-01 Switters

删除<的TransformGroup >标签，你只需要：

<Ellipse.RenderTransform> 
    <RotateTransform Angle="0" /> 
</Ellipse.RenderTransform>

另外一个名称分配给RotateTransform要动画和目标是在动画（改为DoubleAnimation是因为它是短）：

<Ellipse.RenderTransform> 
    <TransformGroup> 
     <RotateTransform Angle="0" x:Name="ellipseRotateTransform" /> 
    </TransformGroup> 
</Ellipse.RenderTransform> 
<Ellipse.Triggers> 
    <EventTrigger RoutedEvent="Ellipse.Loaded"> 
     <BeginStoryboard> 
      <Storyboard> 
       <DoubleAnimation 
        Storyboard.TargetName="ellipseRotateTransform" 
        Storyboard.TargetProperty="Angle" 
        From="0" To="359" 
        Duration="0:0:4" 
        RepeatBehavior="Forever"> 
       </DoubleAnimation> 
      </Storyboard> 
     </BeginStoryboard> 
    </EventTrigger> 
</Ellipse.Triggers>

来源

2009-12-01 23:01:02

WPF动画不播放

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