Telerik RadGrid gives you the full freedom to customize the editing as you wish. You can work with the integrated set of column editors, use your custom editor, or define a form template for editing the data.
Under ASP.NET 2.0 framework Telerik RadGrid gives you full support of the Automatic DataSource Operations for Insert/Update/Delete of records.
Check Insert/Update/Delete records chapter for additional details.
Validation support
Telerik RadGrid supports validation for the data entered by the site-visitor. See Validation section for details.