DataGrid classic edit update Delete Code

Private void datagrid1_editcommand (Object source, system. Web. UI. webcontrols. datagridcommandeventargs E)
{
Datagrid1.edititemindex = (INT) E. Item. itemindex;
Bindgrid ();
}

Private void datagrid1_pageindexchanged (Object source, system. Web. UI. webcontrols. datagridpagechangedeventargs E)
{
Datagrid1.currentpageindex = E. newpageindex;
Bindgrid ();
}

Private void datagrid1_deletecommand (Object source, system. Web. UI. webcontrols. datagridcommandeventargs E)
{
Sqlcommand CM = new sqlcommand ("deleteemp", mysqlconn );
Cm. commandtype = commandtype. storedprocedure;
Cm. Parameters. Add (New sqlparameter ("@ empid", sqldbtype. Int, 4 ));
Cm. Parameters ["@ empid"]. value = maid [(INT) E. Item. itemindex];

Cm. Connection. open ();
Try
{
Cm. executenonquery ();
Label1.text = "deleted ";

}
Catch (sqlexception)
{
Label1.text = "failed to delete ";
Label1.style ["color"] = "red ";
}
Cm. Connection. Close ();
Bindgrid ();
}

Private void datagrid1_cancelcommand (Object source, system. Web. UI. webcontrols. datagridcommandeventargs E)
{
Datagrid1.edititemindex =-1;
Bindgrid ();
}

Private void datagrid1_updatecommand (Object source, system. Web. UI. webcontrols. datagridcommandeventargs E)
{
Sqlcommand CM = new sqlcommand ("updateemp", mysqlconn );
Cm. commandtype = commandtype. storedprocedure;

Cm. Parameters. Add (New sqlparameter ("@ email", sqldbtype. varchar, 50 ));
Cm. Parameters. Add (New sqlparameter ("@ Tell", sqldbtype. varchar, 50 ));
Cm. Parameters. Add (New sqlparameter ("@ JB", sqldbtype. Int, 4 ));
Cm. Parameters. Add (New sqlparameter ("@ emp_id", sqldbtype. Int, 4 ));
String colvalue = (textbox) E. Item. cells [4]. controls [0]). text;
Cm. Parameters ["@ email"]. value = colvalue;

Colvalue = (textbox) E. Item. cells [5]. controls [0]). text;
Cm. Parameters ["@ JB"]. value = colvalue;
Colvalue = (textbox) E. Item. cells [6]. controls [0]). text;
Cm. Parameters ["@ Tell"]. value = colvalue;

Cm. Parameters ["@ emp_id"]. value = maid [(INT) E. Item. itemindex];
Cm. Connection. open ();
Try
{
Cm. executenonquery ();
Label1.text = "edited ";
Datagrid1.edititemindex =-1;
}
Catch (sqlexception)
{
Label1.text = "Edit failed ";
Label1.style ["color"] = "red ";
}
Cm. Connection. Close ();
Bindgrid ();
}