Use DoubleAnimation to animate Gradient Offset : DoubleAnimation « Windows Presentation Foundation « VB.Net Tutorial

1. VB.Net Tutorial
2. Windows Presentation Foundation
3. DoubleAnimation

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Animation">
    <Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
      <Button Padding="30">
        OK
        <Button.Background>
          <LinearGradientBrush>
            <GradientStop Color="Blue" Offset="0"/>
            <GradientStop Color="Red" Offset="0.5"/>
            <GradientStop Color="Blue" Offset="1"/>
          </LinearGradientBrush>
        </Button.Background>
        <Button.Triggers>
          <EventTrigger RoutedEvent="Button.Loaded">
            <EventTrigger.Actions>
              <BeginStoryboard>
                <Storyboard>
                  <DoubleAnimation From="0" To="1" Duration="0:0:2"
                  Storyboard.TargetProperty="Background.GradientStops[1].Offset"
                  AutoReverse="True" RepeatBehavior="Forever"/>
                </Storyboard>
              </BeginStoryboard>
            </EventTrigger.Actions>
          </EventTrigger>
        </Button.Triggers>
      </Button>
    </Canvas>
</Window>

16.109.DoubleAnimation
	16.109.1.	DoubleAnimation Loop forever
	16.109.2.	DoubleAnimation Loop three times
	16.109.3.	DoubleAnimation Loop for 30 seconds
	16.109.4.	Use DoubleAnimation to animate Gradient Offset
	16.109.5.	Path Animation with DoubleAnimation Using Path, AutoReverse
	16.109.6.	Create DoubleAnimation and Animate a Button with Button.BeginAnimation and Button.WidthProperty
	16.109.7.	TranslateTransform and DoubleAnimation