(Q) How do I refer to a control found on a tab page when I'm using a
tabbed form?
(A) The tab control has no impact on the syntax for referring to a
control. To refer to a control on the main form, you simply use [Control name].
To refer to a property of a subform on a tab page, you use:
[Subform Control Name].Form.Property
To refer to a control on a subform on a tab page:
[Subform Control Name].Form![Control Name]
And, to refer to a property of a control on a subform on a tab page:
[Subform Control Name].Form![Control Name].Property
