Unfortunately at the moment the RadTileView doesn't support synchronization for the current item. I've added it as a feature request in our PITS
under the name "TileView: Add support for IsSynchronizedWithCurrentItem"
and it will be ready for tracking tomorrow the latest.
For now the easiest way is (as you've probably discovered) to handle the TilesStateChanged and the CurrentChanged events and synchronize the Maximized and the Current item there.
For further references could you please examine the attached project and if you have more questions feel free to ask.
the Telerik team
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