Is there a way to remove or customize Pivot transitions? - xaml

Question

By default, Pivots transition their PivotItems in/out using a horizontal translation with an opacity fade. I'd like a way to remove them (firstly), but also customize if possible.
Things I've tried to remove them (just passing an empty TransititionCollection in):
<Pivot>
<Pivot.Transitions>
<TransitionCollection />
</Pivot.Transitions>
<Pivot.ItemContainerTransitions>
<TransitionCollection />
</Pivot.ItemContainerTransitions>
<PivotItem Header="Red">
<PivotItem.Transitions>
<TransitionCollection />
</PivotItem.Transitions>
<PivotItem.ContentTransitions>
<TransitionCollection />
</PivotItem.ContentTransitions>
<Grid Background="Red" Width="100" Height="200" />
</PivotItem>
<PivotItem Header="Green">
<Grid Background="Green" Width="100" Height="200" />
</PivotItem>
</Pivot>

Answer 1

If you dig into the default Pivot template, you will find the following part for the content:
<ItemsPresenter x:Name="PivotItemPresenter" Grid.ColumnSpan="3" Grid.Row="1">
<ItemsPresenter.RenderTransform>
<TransformGroup>
<TranslateTransform x:Name="ItemsPresenterTranslateTransform"/>
<CompositeTransform x:Name="ItemsPresenterCompositeTransform"/>
</TransformGroup>
</ItemsPresenter.RenderTransform>
</ItemsPresenter>
These two Transforms inside the TransformGroup manage the animation of the items, there is no Transition behind it. This means that setting TransitionCollection empty has unfortunately no effect.
Even more unfortunate is the fact that you cannot easily remove the transition, because trying trying to remove either of the two Transforms from the Pivot style will make the control not render properly. This is likely because both transforms are referenced within the controls code-behind.
As a result, it seems that customizing the animation of the built-in Pivot is unfortunately not possible.