Using SpeedRatio in a hierarchy : Animation « Windows Presentation Foundation « VB.Net

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

Using SpeedRatio in a hierarchy

       
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      HorizontalAlignment="Stretch" VerticalAlignment="Stretch">

<StackPanel Orientation="Horizontal" VerticalAlignment="Center">
  <StackPanel.Triggers>
    <EventTrigger RoutedEvent="StackPanel.Loaded">
      <BeginStoryboard>
        <Storyboard>

            
            <ParallelTimeline RepeatBehavior="Forever">
            
              <DoubleAnimation BeginTime="0:0:0" Duration="0:0:0.2"
                               Storyboard.TargetName="button1"
                               Storyboard.TargetProperty="(Button.Height)"
                               By="30" AutoReverse="True" />
            
              <DoubleAnimation SpeedRatio="2" BeginTime="0:0:1" Duration="0:0:0.2"
                               Storyboard.TargetName="button2"
                               Storyboard.TargetProperty="(Button.Height)"
                               By="30" AutoReverse="True" />
            
              <ParallelTimeline BeginTime="0:0:2" SpeedRatio="4">
            
                <DoubleAnimation SpeedRatio="0.25" BeginTime="0:0:0" Duration="0:0:0.2"
                                 Storyboard.TargetName="button3"
                                 Storyboard.TargetProperty="(Button.Height)"
                                 By="30" AutoReverse="True" />
            
            
              </ParallelTimeline>
            
            </ParallelTimeline>
            

        </Storyboard>
      </BeginStoryboard>
    </EventTrigger>
  </StackPanel.Triggers>

  <Button Name="button1" Height="25">One</Button>
  <Button Name="button2" Height="25">Two</Button>
  <Button Name="button3" Height="25">Three</Button>
</StackPanel>

</Page>

   
    
    
    
    
    
    
  

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