Bonjour,
Oui, c'est facile de se créer sa fonction Exist_Ctrl
Voir exemple joint
Pierre
Function Exist_Ctrl(Usf As Object, Ctrl As String) As Boolean
Exist_Ctrl = True
On Error GoTo errhdlr
Usf.Controls(Ctrl).Tag = 0
Exit Function
errhdlr:
Exist_Ctrl = False
End Function