If you decide to do this with code, you just need to call Begin () from StoryBoard. Such as:
<Storyboard x:Name="fadeIn"> <DoubleAnimation Storyboard.TargetName="img" Storyboard.TargetProperty="Opacity" From="0.0" To="1.0" Duration="0:0:1" /> </Storyboard> private void btnFadeIn_Click(object sender, RoutedEventArgs e) { this.fadeIn.Begin(); }
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