無法更改VisualStateManager過渡期

Question

我已經定義了幾個VisualStates爲我創造了一個覆蓋（「ThankYouOverlay」）的消息褪色控制：

<VisualStateManager.VisualStateGroups> 
    <VisualStateGroup x:Name="CommonStates"> 
     <VisualStateGroup.Transitions> 
      <VisualTransition To="ThankYou" GeneratedDuration="0:0:0.3"> 
       <Storyboard> 
        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
         <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/> 
        </ObjectAnimationUsingKeyFrames> 
        <DoubleAnimation Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="1" /> 
       </Storyboard> 
      </VisualTransition> 
     </VisualStateGroup.Transitions> 
     <VisualState x:Name="Normal"> 
      <Storyboard> 
       <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
        <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Collapsed}"/> 
       </ObjectAnimationUsingKeyFrames> 
       <DoubleAnimation Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="0"/> 
      </Storyboard> 
     </VisualState> 
     <VisualState x:Name="ThankYou"> 
      <Storyboard> 
       <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
        <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/> 
       </ObjectAnimationUsingKeyFrames> 
       <DoubleAnimation Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="1"/> 
      </Storyboard> 
     </VisualState> 
    </VisualStateGroup> 
</VisualStateManager.VisualStateGroups> 

這種轉變的工作，但我無法更改動畫持續時間。我玩過VisualTransition的GeneratedDuration屬性和個人動畫「Duration」屬性的不同組合，但不管這些更改如何，動畫的實際持續時間爲1秒（默認情況下，我假設）。

我錯過了什麼？我如何更改轉換的持續時間？

Answer 1

爲了試圖證明這一點給同事，我對每可財產Duration指定的Duration ...然後它的工作我預期的方式：

<VisualStateManager.VisualStateGroups> 
    <VisualStateGroup x:Name="CommonStates"> 
     <VisualStateGroup.Transitions> 
      <VisualTransition To="ThankYou" GeneratedDuration="0:0:0.3"> 
       <Storyboard Duration="0:0:0.3"> 
        <ObjectAnimationUsingKeyFrames Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
         <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/> 
        </ObjectAnimationUsingKeyFrames> 
        <DoubleAnimation Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="1" /> 
       </Storyboard> 
      </VisualTransition> 
     </VisualStateGroup.Transitions> 
     <VisualState x:Name="Normal"> 
      <Storyboard Duration="0:0:0.3"> 
       <ObjectAnimationUsingKeyFrames Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
        <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Collapsed}"/> 
       </ObjectAnimationUsingKeyFrames> 
       <DoubleAnimation Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="0"/> 
      </Storyboard> 
     </VisualState> 
     <VisualState x:Name="ThankYou"> 
      <Storyboard Duration="0:0:0.3"> 
       <ObjectAnimationUsingKeyFrames Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Visibility)"> 
        <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}"/> 
       </ObjectAnimationUsingKeyFrames> 
       <DoubleAnimation Duration="0:0:0.3" Storyboard.TargetName="ThankYouOverlay" Storyboard.TargetProperty="(UIElement.Opacity)" To="1"/> 
      </Storyboard> 
     </VisualState> 
    </VisualStateGroup> 
</VisualStateManager.VisualStateGroups> 

我不是真的確定哪些是必要的，哪些是多餘的。