To cancel the update to a record before the after update event, you use the forms before update event, and issue a
[tt]Cancel = True[/tt]
If you cancel the before update event of the form, the after update event of the form will not trigger.
But - I second ZmrAbdullas question - I still haven't the foggiest what you're really trying to achieve ... except you're talking about form events, which is really more appropriate in the forms forum (forum702)
Roy-Vidar