VB.net Clear All TextBoxes in Each TabPage

Ok, so im using VB.net and what i want to do is:

Clear every textbox on each tab page.

I have a Tab Control called 'tabs' it has 12 Tab Pages each named something different, e.g. aa, bb,tt, gg

each tab page contains a number of text boxes.  I have a command button on the form (not on any of the tab pages) which when clicked, i would like to clear all the text boxes on all the tab pages, so far i have this:

Dim ctl As Object

        For Each ctl In Me.aa.Controls
            If TypeOf ctl Is TextBox Then
                ctl.text = ""
            End If
        Next

This clears all the textboxes on the first tab called aa.
To clear the rest of the textboxes on the other tabs i could have to have this code again but with a different tab page name e.g. bb

Is there a way to use another outer for loop e.g.:

for each TABPAGE in TABCONTROL
       name = TABPAGE.name

        For Each ctl In Me.name.Controls
            If TypeOf ctl Is TextBox Then
                ctl.text = ""
            End If
        Next
next


something along those lines?  However it dosnt work and i cant figure a way out?

Gary