Animated GradientStop Opacity ColorAnimation.By : Animation « Windows Presentation Foundation « VB.Net

1. VB.Net
2. Windows Presentation Foundation
3. Animation

Animated GradientStop Opacity ColorAnimation.By

      

<Window x:Class="WpfApplication1.ShapesWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="ShapesWindow" Height="160" Width="400">

      <Window.Resources>
        <Style TargetType="{x:Type TextBlock}">
          <Setter Property="Background" Value="White" />
          <Setter Property="Padding" Value="10" />
          <Setter Property="BitmapEffect">
            <Setter.Value>
              <OuterGlowBitmapEffect GlowColor="White" />
            </Setter.Value>
          </Setter>
        </Style>
        <Style TargetType="{x:Type Rectangle}">
          <Setter Property="BitmapEffect">
            <Setter.Value>
              <DropShadowBitmapEffect />
            </Setter.Value>
          </Setter>
        </Style>
      </Window.Resources>
    <StackPanel>

        <Rectangle Width="200" Height="100" Stroke="Black" StrokeThickness="1" Margin="10">
          <Rectangle.Fill>
            <RadialGradientBrush>
              <GradientStop Color="MediumBlue" Offset="0.0" />
              <GradientStop x:Name="gradientStopC2" Color="Purple" Offset="0.5" />
              <GradientStop Color="Red" Offset="1.0" />
            </RadialGradientBrush>
          </Rectangle.Fill>
          <Rectangle.Triggers>
            <EventTrigger RoutedEvent="Rectangle.MouseLeftButtonDown">
              <BeginStoryboard>
                <Storyboard>
                  <ColorAnimation 
                    Storyboard.TargetName="gradientStopC2"
                    Storyboard.TargetProperty="Color" 
                    Duration="0:0:3" FillBehavior="Stop">
                    <ColorAnimation.By>
                      <Color ScA="-1" ScR="0" ScB="0" ScG="0" />
                    </ColorAnimation.By>
                  </ColorAnimation>
                </Storyboard>
              </BeginStoryboard>
            </EventTrigger>
          </Rectangle.Triggers>
        </Rectangle>

    </StackPanel>
</Window>

   
    
    
    
    
    
  

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