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Hello Hema,
Refer to this article
http://www.articlemirror.in/2015/08/gridview-add-edit-delete-and-update-record-asp.net-c-vb.net.html
thanks,
Vijay
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http://www.c-sharpcorner.com/UploadFile/1e050f/edit-and-update-record-in-gridview-in-Asp-Net/
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Hi hema,
In asp gridview two things you want to know one is BoundField and another one is TemplateField.Do you want to add any control and any modification inside grid then use TemplateField.
Reference :
http://www.aspdotnet-suresh.com/2015/07/aspnet-gridview-crud-operations-insert-select-edit-update-delete-using-single-stored-procedure-example.html
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Use Update Query for any changes in database.
http://www.aspsnippets.com/Articles/Insert-Update-Edit-Delete-record-in-GridView-using-SqlDataSource-in-ASPNet.aspx