Hello Grtjn,
Thank you for your feedback.
If you want to set BorderBrush and BorderThickness around the RadTileView Control you have to make Border and to set its properties of the Border.
Please find attached an example.
Also, can you please elaborate on the fist question, because I am not sure whether I understand your scenario correctly.
If you have further questions please do not hesitate to ask us.
I hope this will help you.
Best wishes,
Dimitrina
the Telerik team
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