Dim iPage As Integer
Dim ctl As Control
Dim cpt As Integer
For iPage = 1 To MultiPage1.Pages.Count
For Each ctl In MultiPage1.Pages(iPage - 1).Controls
If TypeOf ctl Is MsForms.ListBox Then
cpt = cpt + 1 ' ou autre action sur le contrôle listbox
End If
Next ctl
Next iPage
MsgBox cpt