ResourceDictionary 中的故事板

问题描述

所以我想将我的故事板移动到一个 ResourceDictionary 文件中，但我在这样做时遇到了麻烦.我到处寻找，它涉及使资源"可共享，但是当没有 x:Shared 属性时，我如何在 Silverlight 中做到这一点.这是代码

So I would like to move my Storyboards into a ResourceDictionary file and I am having trouble doing that. I have looked everywhere and it involves making the "Resource" sharable but how do I do that in silverlight when there is no x:Shared attribute. Here is the code

 <Storyboard x:Key="GreenButtonLight"  >
        <ColorAnimationUsingKeyFrames BeginTime="00:00:00"
                                      Storyboard.TargetName="GreenBelow"
                                      Storyboard.TargetProperty="(Shape.Fill).(GradientBrush.GradientStops)[0].(GradientStop.Color)">
            <SplineColorKeyFrame KeyTime="00:00:00"
                                 Value="#FF75F45D" />
            <SplineColorKeyFrame KeyTime="00:00:00.1000000"
                                 Value="#FFA5F796" />
            <SplineColorKeyFrame KeySpline="1,0,1,0.06"
                                 KeyTime="00:00:00.5000000"
                                 Value="#FF75F45D" />
        </ColorAnimationUsingKeyFrames>
</Storyboard>

这是我在 XAML 中的内容

Here is what i have in XAML

<Grid.Resources>
   <ResourceDictionary>
     <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="Resources/ViewResources.xaml" />
        </ResourceDictionary.MergedDictionaries>
            </ResourceDictionary>
        </Grid.Resources>

这是我得到的错误

错误:元素已经是另一个元素的子元素.

Error: Element is already the child of another element.

当我放入故事板时，它只会给我这个错误，没有别的(例如:样式).我使用的是 Silverlight 3 而不是 wpf.

It only gives me that error when I put in storyboards, nothing else (ex:Styles). I am using Silverlight 3 and not wpf.

推荐答案

您不能在资源中放置故事板，因为它是一个有状态的对象.它知道它是否已经开始动画，它在时间轴中的位置等等.而且它的子动画获取对它们正在动画的对象和属性的引用.

You can't place a storyboard in a resource because its a stateful object. It knows whether it has begun animating, where it is in the timeline etc. Also its child animations acquire a references to the objects and properties they are animating.

通常会在控件模板中的元素的 VisualStateManager 中放置要重用的故事板.

Typically one places storyboards to be reused in the VisualStateManager of an element in control template.

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