WPF after animation events stop working

Question

I have a simple window where the user scans a barcode and you get an animation based on the barcode.

after the first animation it stops receiving the Window_KeyDown event.

The animation is triggered via code because it needs to read the barcode.

This is the storyboard.

    <Storyboard x:Key="Win">
        <StringAnimationUsingKeyFrames Storyboard.TargetProperty="(TextBlock.Text)" Storyboard.TargetName="txtbScan">
            <DiscreteStringKeyFrame KeyTime="0:0:05" Value="Scan your barcode"/>
        </StringAnimationUsingKeyFrames>
    </Storyboard>

Here i call in code.

                Dim win As Storyboard = DirectCast(FindResource("Win"), Storyboard)
                txtbScan.Text = "Hurray you won " & GetPrize(curBarcode)
                win.Begin(Me)

It looks like the animation continues and cannot receive the next input event.

possible duplicate of [How to stop an animation in C# / WPF?](http://stackoverflow.com/questions/20298/how-to-stop-an-animation-in-c-sharp-wpf) — Emond, May 30 '13 at 19:59

score 0 · Answer 1 · edited May 23 '17 at 12:11

0

Yeah, that's a weirdness with WPF. Animations don't clear until you call a null animation on the animated property. Try this:

// You have to run a 'null' animation to clear an animated property
win.BeginAnimation(TextBlock.TextProperty, null)

something to that effect. (Not sure how to properly format VB).

Edit:

Take a look at this How to stop an animation in C# / WPF?

edited May 23 '17 at 12:11

Community

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answered May 30 '13 at 19:54

sircodesalot

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Or just set the animation's [FillBehavior](http://msdn.microsoft.com/en-us/library/system.windows.media.animation.timeline.fillbehavior.aspx) property to `Stop`. – Clemens May 30 '13 at 21:15

WPF after animation events stop working

1 Answers1