CODEWITHSUNDEEP
wpfxamltriggersstoryboard
James Hay
James Hay

Reputation: 12710

Can you define an storyboard to play out, before a property changes?

For instance I am setting the Visibility on and off for a certain element. I have a Trigger that listens to the Visibility being set to Visible and plays out a Storyboard that fades in the element.

So on the flip side, when the element is set to Hidden, I want the element to fade out, and then have the property set to Visibility = false. Is this possible and if so how? Currently I have something like:

    <Style.Triggers>
        <Trigger Property="Visibility" Value="Visible">
            <Trigger.EnterActions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:0.5" />
                    </Storyboard>
                </BeginStoryboard>
            </Trigger.EnterActions>
            <Trigger.ExitActions>
                <BeginStoryboard>
                    <Storyboard>
                        <DoubleAnimation Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:0.5" />
                    </Storyboard>
                </BeginStoryboard>
            </Trigger.ExitActions>
        </Trigger>
    </Style.Triggers>

Upvotes: 3

Views: 356

Answers (1)

Arcturus
Arcturus

Reputation: 27055

There are more Trigger classes that meet the eye.. Perhaps you can use another trigger to achieve what you wish to do..

From MSDN:

There are several different types of triggers: Trigger, MultiTrigger, EventTrigger, DataTrigger, and MultiDataTrigger.

Perhaps use a DataTrigger to bind to a state property that tells the UI something is changing? Or you can try using a custom event and an EventTrigger to achieve the same? Just some thoughts..

Upvotes: 2

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