as i am editing a record, as its working perfectly in internet explorer, i set the tooltip for edit by using EditText property in the edit template, same also for the update text. right now it is rendering as expected in IE, but it is not displaying tooltip in firefox,
functionality wise its working fine.
<asp:CommandField ButtonType="Image" EditText="Click here to edit section" EditImageUrl="../images/edit.gif" HeaderText="Actions"
UpdateText="click here to update section" UpdateImageUrl="../images/pageok.gif" CancelText="Cancel"
CancelImageUrl="../images/pagecancel.gif" ShowEditButton="true"
ControlStyle-CssClass="LinkNormal" >
Stackoverflow reply
You can also use Item Template and Edit Item Template for this purpose. This is more flexible.