>Why does the presavehook event on the clistobjeditform only get triggered by an Add of a new record and not an Edit of an existing record? Is there another event that would get triggered by an Edit? I'm trying to update a field on the grid of the calling form.

Actually, it *does* get fired when saving either a new or edited record. Check out cmdOK.Click()...ThisForm.PreSaveHook() is called unconditionally.

Regards,