Please accept my apology for the delayed response.
I prepared a sample project illustrating how to use a RadChart and RadGridView inside a TileViewItem. Please take a look at it and let me know if this is what you had in mind or if you need more info.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items