>Hello Guys
>
>I have an application that has control array of frames
>On each frame I have TextBoxes.
>
>I then have a command button that corresponds to each frame
>that When it is 'clicked' causes the corresponding frame
>to become visible.
>
>What I want to do is when a frame is visible then I will only be able
>to tab between the texboxes within this frame and not texboxes that are
>on frames that are not visible.

Are you only dealing with the ZOrder property or do you really made them invisible?

I made a small test and making frames invisible do not allow to tab in its textboxes.

Place 2 frames, some textboxes in each, 2 command buttons and 1 label on a form.

Private Sub Command1_Click(Index As Integer)
    Frame1(0).Visible = False
    Frame1(1).Visible = False
    
    Frame1(Index).Visible = True
End Sub

Private Sub Text1_GotFocus(Index As Integer)
    Label1.Caption = "Current control index is " & Index
End Sub