<Window.Resources>
		<Storyboard x:Key="Storyboard1">
			<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(Canvas.Top)" Storyboard.TargetName="border">
				<EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="80">
					<EasingDoubleKeyFrame.EasingFunction>
						<BounceEase EasingMode="EaseOut" Bounces="8" Bounciness="4"/>
					</EasingDoubleKeyFrame.EasingFunction>
				</EasingDoubleKeyFrame>
			</DoubleAnimationUsingKeyFrames>
		</Storyboard>
	</Window.Resources>

<Canvas>
			<Border x:Name="border" Background="#FFE7BE8A" CornerRadius="15" Width="807" Height="70" Canvas.Top="5">
				<Border.Effect>
					<DropShadowEffect/>
				</Border.Effect>
			</Border>
</Canvas>

            BounceEase ease = new BounceEase();
            ease.EasingMode = EasingMode.EaseOut;
            ease.Bounces = 8;
            ease.Bounciness = 4;


            EasingDoubleKeyFrame kf = new EasingDoubleKeyFrame(80);
            kf.KeyTime = KeyTime.FromTimeSpan(new TimeSpan(0, 0, 0, 1, 500));
            kf.EasingFunction = ease;

            DoubleAnimationUsingKeyFrames doubleanim = new DoubleAnimationUsingKeyFrames();
            doubleanim.KeyFrames.Add(kf);
            doubleanim.SetValue(Storyboard.TargetNameProperty, border.Name);
            doubleanim.SetValue(Storyboard.TargetProperty, "Canvas.Top");

            Storyboard sb = new Storyboard();
            sb.Children.Add(doubleanim);

            sb.Begin();

            DoubleAnimationUsingKeyFrames doubleanim = new DoubleAnimationUsingKeyFrames();
            doubleanim.KeyFrames.Add(kf);
            //doubleanim.SetValue(Storyboard.TargetNameProperty, border.Name);
            //doubleanim.SetValue(Storyboard.TargetProperty, "Canvas.Top");

            Storyboard sb = new Storyboard();
            Storyboard.SetTarget(doubleanim, border);
            Storyboard.SetTargetProperty(doubleanim, new PropertyPath("(Canvas.Top)"));
            sb.Children.Add(doubleanim);

            sb.Begin();