I have a subform linked to a main form. I will call this the primary subform. In the primary subform is a tab control with an additional subform on each each tab control page. I am trying to prevent a user from saving changes to an existing primary subform record by clicking down into one of the tabbed page subforms. Is there an exit event for the primary subform where I might be able to write some code to capture the movement away from the primary subform into the tabbed control and redirect it back to the primary subform? I am trying to control record changes by routing all edits through a validation script linked to a command box. Thanks for any help!