Currently RadGrid supports strongly typed binding to a model and the use of OnCalling DataMethods, but requires additional non-documented code to get it to work correctly. See forum post at http://www.telerik.com/forums/model-binding-selectmethod-defined-in-a-business-object#jyvrnG4qhEOdaXv_pBVt8g for the code requirements. Request putting the ItemType and OnCallingDataMethods into the MasterTableView markup and eliminate the need to override the OnInit call. The markup would end up looking like: <MasterTableView DataKeyNames="intOfficeId" ItemType="Models.OfficeModel" OnCallingDataMethods="grdAssignments_CallingDataMethods" SelectMethod="GetOffice" UpdateMethod="UpdateOffice" DeleteMethod="DeleteOffice" > This would also pave the way to strongly bind the detail grid.