I have 2 DataTrigger that animates the background color of a button (with reverse), this part works fine.
The problem is that when the 2 triggers are fired in overlapping times, the first trigger fired does not reverse the color, when the second trigger stops it reverses the color to whatever was the color when the previous animation stopped.
What should I do?
This is the example code:
<DataTrigger Binding="{Binding IsUp}" Value="True">
<DataTrigger.EnterActions>
<StopStoryboard BeginStoryboardName="isDownStoryBoard"/>
<BeginStoryboard Name="isUpStoryBoard">
<Storyboard>
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[0].Color" To="#b4e391" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[1].Color" To="#61c419" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[2].Color" To="#b4e391" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[3].Color" To="#b4e391" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
</DataTrigger>
<DataTrigger Binding="{Binding IsDown}" Value="True">
<DataTrigger.EnterActions>
<StopStoryboard BeginStoryboardName="isUpStoryBoard"/>
<BeginStoryboard Name="isDownStoryBoard">
<Storyboard>
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[0].Color" To="#efc5ca" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[1].Color" To="#d24b5a" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[2].Color" To="#ba2737" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
<ColorAnimation Storyboard.TargetProperty="Background.GradientStops[3].Color" To="#f18e99" Duration="0:0:1" AutoReverse="True" RepeatBehavior="2x" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
</DataTrigger>
There is a
StopStoryboard
Class that you can use to stop a runningStoryboard
with, but there is noReverseStoryboard
class. However, you can just create anotherStoryboard
that runs in reverse to your original one that you start when you stop the original one. You can use theStopStoryboard
class like this (from the linked page on MSDN):Also, please see the
Timeline.FillBehavior
Property that you can set on theStoryboard
which Gets or sets a value that specifies how the Timeline behaves after it reaches the end of its active period. You can set it to theFillBehavior.HoldEnd
enumeration to get theStoryboard
to keep it's last value when it ends.