为什么不能在scrollview中直接添加一个image，然后使animation.begin()??

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http://stackoverflow.com/questions/17267451/animation-cant-begin-in-scrollview-in-windows-phone

以上是我在SO中提的一个问题

我简单贴下代码，问题描述在上述网址中

<UserControl.Resources>
<Storyboard x:Name="Storyboard1">
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateY)" Storyboard.TargetName="my_combo_pic">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="80"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(CompositeTransform.TranslateX)" Storyboard.TargetName="my_combo_pic">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="0"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>...
<ScrollViewer x:Name="my_combo" Tap="MyCombolIconTapped" HorizontalAlignment="Right" Height="80" Margin="0" VerticalAlignment="Bottom" Width="80">
<Image x:Name="my_combo_pic" Stretch="Fill" Source="/Images/my_combo_icon.png" RenderTransformOrigin="0.5,0.5" Height="160" Width="80">
<Image.RenderTransform>
<CompositeTransform/>
</Image.RenderTransform>
</Image>
</ScrollViewer>
</Grid>

最终动画在wp device上没有运作

虽然在blend中表现良好！

原因是：

http://msdn.microsoft.com/zh-cn/library/windowsphone/develop/jj206955%28v=vs.105%29.aspx

中

2. 创建情节提要并将其变成资源