Base and "Derived" Grid View - XAML issue

Is it possible to create base user control with GridView without column definition and then to provide later that columns definition in XAML of other user control that has that base user control embedded inside (so base user control with GridView is child control of other user control)? I try to do it in Silverlight.

I created DependencyProperty on base user control level that exposes Telerik GridView, but in user control that has this user control as a child control I can't override GridView object or change column definition. I mean I provided such Grid/Column definition on parent/outer user control and XA开发者_C百科ML compilation works ok, but I see test column defined on base user control all the time...