Change the background image of a Button when pressed using VisualStateManager

Posted by Thomas Joulin on Stack Overflow See other posts from Stack Overflow or by Thomas Joulin
Published on 2011-01-17T10:07:26Z Indexed on 2012/12/11 5:04 UTC
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I have this button :

<Button x:Name="PrevAdIcon" Tag="-1" Visibility="Collapsed" Width="80" Height="80" Click="PrevAd">
    <Button.Background>
        <ImageBrush AlignmentY="Top" Stretch="None" ImageSource="/Images/prev.png"></ImageBrush>
    </Button.Background>
</Button>

How can I change the background to /Images/prev-selected.png when a user pressed the button ? It'll give him a feedback, since it's a WP7 app

what I have so far (not working) :

<vsm:VisualState x:Name="Pressed">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames BeginTime="00:00:00"  Duration="00:00:00.0010000" Storyboard.TargetName="Background" Storyboard.TargetProperty="Background">
                                            <DiscreteObjectKeyFrame KeyTime="0">
                                                <DiscreteObjectKeyFrame.Value>
                                                    <ImageBrush ImageSource="/Images/prev-selected.png" Stretch="Fill"/>
                                                </DiscreteObjectKeyFrame.Value>
                                            </DiscreteObjectKeyFrame>
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </vsm:VisualState>

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