i am doing like this
BackColor="#7fb16c" BorderColor="#cccccc" BorderStyle="None" BorderWidth="1px"
CellPadding="0" CellSpacing="0" Height="1px" AllowPaging="true"
AllowSorting="true" PageSize="10"
OnRowEditing="grdDematChk_RowEditing"
OnRowCancelingEdit="grdDematChk_RowCancelingEdit"
OnRowUpdating="grdDematChk_RowUpdating" OnRowDeleting="grdDematChk_RowDeleting"
AutoGenerateDeleteButton="True" AutoGenerateEditButton="True" >
and in code behind
Protected Sub grdDematChk_RowEditing(ByVal sender As Object, ByVal e As GridViewEditEventArgs)
grdDematChk.EditIndex = e.NewEditIndex
GetAddModeDataView()
End Sub

Vijay YadavPosted Jul 30, 2011, 6:42 AM
If you are loading the gridivew on page load event then check the postback property.
Mayur GujrathiPosted Jul 30, 2011, 3:43 AM
Jiteendra SampathiraoPosted Jul 30, 2011, 3:31 AM
you mentioned that when you trace the page using breaking point it hitting the event..and the same time you are telling gridview edit event not firing....
When you trace the page using breakpoints if it hits the the events means that event fired....Might be the problem is with the functionality which is exists in that Event...
Mayur GujrathiPosted Jul 30, 2011, 3:14 AM
Suthish NairPosted Jul 30, 2011, 3:01 AM
Are you using Ajax, if yes then set the Triggers for controls for executing the events.