How to: Animate a Glow Effect
This topic describes how to animate the GlowSize property of an OuterGlowBitmapEffect.
Example
The following example animates changes to the GlowSize property of the OuterGlowBitmapEffect. As a result, the glow animates outward when the TextBox gets focus.
<Page xmlns="https://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="https://schemas.microsoft.com/winfx/2006/xaml" >
<StackPanel>
<TextBox Width="200">
<TextBox.BitmapEffect>
<!-- This BitmapEffect is targeted by the animation. -->
<OuterGlowBitmapEffect x:Name="myOuterGlowBitmapEffect"
GlowColor="Blue" GlowSize="0" />
</TextBox.BitmapEffect>
<TextBox.Triggers>
<EventTrigger RoutedEvent="TextBox.GotFocus">
<BeginStoryboard>
<Storyboard>
<!-- Animate the GlowSize from 0 to 40 over half a second. -->
<DoubleAnimation
Storyboard.TargetName="myOuterGlowBitmapEffect"
Storyboard.TargetProperty="GlowSize"
From="0" To="40" Duration="0:0:0.5" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBox.Triggers>
</TextBox>
</StackPanel>
</Page>
For the complete sample, see Bitmap Effects Gallery Sample.
See Also
Tasks
How to: Create a Glow Effect on the Outer Edge of an Object
How to: Animate a Blur Visual Effect
How to: Animate a Drop Shadow Visual Effect
How to: Animate Multiple Visual Effects