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POXAML Storyboard for Background ImageBrush
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  1. POXAML Storyboard for Background ImageBrush
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    copied!<p>I have the following XAML Grid:</p> <pre><code> &lt;Grid Style="{StaticResource LayoutRootStyle}" x:Name="mainGrid"&gt; &lt;Grid.Resources&gt; &lt;Storyboard x:Name="FadeOut"&gt; &lt;DoubleAnimation Duration="3" To="0.0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="gridBackgroundImageBrush" d:IsOptimized="True"/&gt; &lt;/Storyboard&gt; &lt;Storyboard x:Name="FadeIn"&gt; &lt;DoubleAnimation Duration="3" To="0.35" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="gridBackgroundImageBrush" d:IsOptimized="True"/&gt; &lt;/Storyboard&gt; &lt;/Grid.Resources&gt; &lt;Grid.Background&gt; &lt;ImageBrush x:Name="gridBackgroundImageBrush" ImageSource="{Binding BackgroundImage}" Opacity="0.35"&gt; &lt;/ImageBrush&gt; &lt;/Grid.Background&gt; </code></pre> <p>I want to programmatically start the "FadeOut" animation and change the Image from ImageBrush, then start the "FadeIn" animation, like this:</p> <pre><code>private void t_Tick(object sender, object e) { try { FadeOut.Begin(); this.DefaultViewModel["BackgroundImage"] = BackgroundImage; FadeIn.Begin(); } catch { } } </code></pre> <p>However the image is changing without any animation. I guess the problem is about how I'm accessing the "Opacity" property of the ImageBrush. I tried the following syntax for the TargetProperty attribute:</p> <pre><code>(Control.Background).(ImageBrush.Opacity) </code></pre> <p>as msdn shows here: <a href="http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.media.animation.storyboard.settargetproperty.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.xaml.media.animation.storyboard.settargetproperty.aspx</a> but it doesn't seem to work. Can someone help me with this problem?</p>
 

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