Thank you for contacting us.
Due to the nature of the TileTransition, you have to set the Container that you want to animate:
is your container of the items, for example ListBox. I have also attached a sample application to illustatrate the TileTransition only so you can see how it is expected to work.
I hope this helps. If you have other questions, don't hesitate to write us back.
All the best,
the Telerik team
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