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POModify Silverlight Resource in VisualState
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  1. POModify Silverlight Resource in VisualState
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    copied!<p>I am wondering if there is an easy way to modify some kind of shared resource (i.e. a Brush) of a control between different VisualStates. For example, I would like to define a Brush to use as both the Background of a Border and the Fill of a different Rectangle. In a different VisualState I would like to change this background Brush in one place (the resource) and have it reflected in all elements using the resource.</p> <p>I am not sure if resources can really be referenced by Name (not Key) for the TargetName of the Storyboard in the VisualState.</p> <p>Here is a simplified example of what I am trying to do in XAML:</p> <pre><code>&lt;UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="SilverlightApplication.MainPage" Width="200" Height="200"&gt; &lt;UserControl.Resources&gt; &lt;SolidColorBrush x:Name="Background" x:Key="Background" Color="Black" /&gt; &lt;/UserControl.Resources&gt; &lt;Grid x:Name="LayoutRoot"&gt; &lt;VisualStateManager.VisualStateGroups&gt; &lt;VisualStateGroup x:Name="MyStates"&gt; &lt;VisualState x:Name="Normal"/&gt; &lt;VisualState x:Name="Red"&gt; &lt;Storyboard&gt; &lt;ColorAnimationUsingKeyFrames BeginTime="00:00:00" Duration="00:00:00.0010000" Storyboard.TargetName="Background" Storyboard.TargetProperty="(Color)"&gt; &lt;EasingColorKeyFrame KeyTime="00:00:00" Value="Red"/&gt; &lt;/ColorAnimationUsingKeyFrames&gt; &lt;/Storyboard&gt; &lt;/VisualState&gt; &lt;/VisualStateGroup&gt; &lt;/VisualStateManager.VisualStateGroups&gt; &lt;Border Background="{StaticResource Background}" Width="100" Height="100" HorizontalAlignment="Left" VerticalAlignment="Top" BorderBrush="Red" BorderThickness="1"/&gt; &lt;Rectangle Fill="{StaticResource Background}" Width="100" Height="100" HorizontalAlignment="Right" VerticalAlignment="Bottom"/&gt; &lt;/Grid&gt; &lt;/UserControl&gt; </code></pre> <p>I have a feeling because these are StaticResources in Silverlight they are only loaded once and can not be changed. I know WPF has some concept of DynamicResources. Is there any way to achieve this type of behavior in Silverlight without having to redefine my brush in all elements?</p>
 

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