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Disable animation in XAML?

If I have a storyboard animation defined in xaml resources, how can I disable it?

For example, if I have something like this in the UserControl.Resources section:

<Storyboard x:Key="MyKey">
        <DoubleAnimation Storyboard.TargetProperty="Opacity" To="1" Duration="0:0:.5" DecelerationRatio="1" />
        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility">
            <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}" />
        </ObjectAnimationUsingKeyFrames>
    </Storyboard>

Is there a way to disable animation in xaml ..?

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The XAML way is described here: http://msdn.microsoft.com/en-us/library/ms741997.aspx

The code behind: You can use FindResource to get a StoryBoard, throw it at the StoryBoard and call Stop.

Edit: See http://www.galasoft.ch/mydotnet/articles/article-2006102701.aspx for a deeper look at storyboard and code.



Edit: Using properties in triggers:

<MultiTrigger>
    <MultiTrigger.Conditions>
        <Condition Property="IsActive" Value="True"/>
    </MultiTrigger.Conditions>
    <MultiTrigger.EnterActions>
        <BeginStoryboard Storyboard="{StaticResource StoryBoard1}"/>
    </MultiTrigger.EnterActions>
    <MultiTrigger.ExitActions>
        <BeginStoryboard Storyboard="{StaticResource StoryBoard2}"/>
    </MultiTrigger.ExitActions>
</MultiTrigger>
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