This post will explain two different ways to bind a GridView (or DetailsView, or any other NamingContainer) to its EntityDataSource when your filtering/search controls are in the header row. This method can be used to break out of pretty much any NamingContainer and assign values to a control that’s on the form (same level as your dataSource).

This post shows you how to insert and update rows in your database directly from an asp.net Gridview using C#.