asp.net grid view adding row n button click

Question

in my page when i click button iwan to add new row to my grid view in asp.net

Raj Kumar · Answer

write this code on button click - DataTable dt = new DataTable (); DataRow dr = null ; dt . Columns . Add ( new DataColumn ( RowNumber  typeof ( string ))); dt . Columns . Add ( new DataColumn ( Column1  typeof ( string ))); dt . Columns . Add ( new DataColumn ( Column2  typeof ( string ))); dt . Columns . Add ( new DataColumn ( Column3  typeof ( string ))); dr = dt . NewRow (); dr [ RowNumber ] = 1 ; dr [ Column1 ] = string . Empty ; dr [ Column2 ] = string . Empty ; dr [ Column3 ] = string . Empty ; dt . Rows . Add ( dr ); //dr = dt.NewRow(); //Store the DataTable in ViewState ViewState [ CurrentTable ] = dt ; Gridview1 . DataSource = dt ; Gridview1 . DataBind ();