KeySpline Animation

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<Window x:Class="Animation.KeySplineAnimation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="KeySplineAnimation" Height="249.6" Width="624"
    >
    <Window.Triggers>
        <EventTrigger RoutedEvent="Window.Loaded">
            <EventTrigger.Actions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimationUsingKeyFrames Storyboard.TargetName="ellipse1" Storyboard.TargetProperty="(Canvas.Left)" >
                            <SplineDoubleKeyFrame KeyTime="0:0:5" Value="250" KeySpline="0.25,0 0.5,0.7"></SplineDoubleKeyFrame>
                            <SplineDoubleKeyFrame KeyTime="0:0:10" Value="500" KeySpline="0.25,0.8 0.2,0.4"></SplineDoubleKeyFrame>
                        </DoubleAnimationUsingKeyFrames>

                        <DoubleAnimation Storyboard.TargetName="ellipse2" Storyboard.TargetProperty="(Canvas.Left)" To="500" Duration="0:0:10">
                        </DoubleAnimation>
                    </Storyboard>
                </BeginStoryboard>
            </EventTrigger.Actions>
        </EventTrigger>
    </Window.Triggers>
    <Canvas Margin="10">
        <Ellipse Name="ellipse1" Canvas.Left="0" Fill="Red" Width="10" Height="10"></Ellipse>
        <Ellipse Name="ellipse2" Canvas.Top="150" Canvas.Left="0" Fill="Red" Width="10" Height="10"></Ellipse>
    </Canvas>
</Window>