hi,

please view the refrence given below it has complete implementation that required for simple DB operations,the following links have both sqldatasource or with sqldatasource implementaion but i recommend you to avoid SQLDATASOURCE on the asp page or on master page.

http://wiki.asp.net/page.aspx/1360/add-edit-update-delete-gridview/

http://www.asp.net/web-forms/tutorials/data-access/accessing-the-database-directly-from-an-aspnet-page/inserting-updating-and-deleting-data-with-the-sqldatasource-vb

"happy Coding"