Boucle dans un userform

Bonjour,

je voudrai créer une boucle sur ce code car je doit le répété 20 Fois

Private Sub ComboBoxTypeAcier1_Change()
Select Case ComboBoxTypeAcier1
Case "TOTO"
LabelA1.Visible = True
ComboBoxA1.Visible = True
TextBoxA1.Visible = True
LabelB1.Visible = False
ComboBoxB1.Visible = False
TextBoxB1.Visible = False
LabelC1.Visible = False
ComboBoxC1.Visible = False
TextBoxC1.Visible = False
Case "TITI"
LabelA1.Visible = True
ComboBoxA1.Visible = True
TextBoxA1.Visible = True
LabelB1.Visible = False
ComboBoxB1.Visible = False
TextBoxB1.Visible = False
LabelC1.Visible = False
ComboBoxC1.Visible = True
TextBoxC1.Visible = True
Case "TATA"
LabelA1.Visible = True
ComboBoxA1.Visible = True
TextBoxA1.Visible = True
LabelB1.Visible = True
ComboBoxB1.Visible = True
TextBoxB1.Visible = True
LabelC1.Visible = True
ComboBoxC1.Visible = True
TextBoxC1.Visible = True
Case Else
LabelA1.Visible = False
ComboBoxA1.Visible = False
TextBoxA1.Visible = False
LabelB1.Visible = False
ComboBoxB1.Visible = False
TextBoxB1.Visible = False
LabelC1.Visible = False
ComboBoxC1.Visible = False
TextBoxC1.Visible = False
End Select
End Sub

...

Private Sub ComboBoxTypeAcier20_Change()
Select Case ComboBoxTypeAcier20
Case "TOTO"
LabelA1.Visible = True
ComboBoxA20.Visible = True
TextBoxA20.Visible = True
LabelB20.Visible = False
ComboBoxB20.Visible = False
TextBoxB20.Visible = False
LabelC20.Visible = False
ComboBoxC20.Visible = False
TextBoxC20.Visible = False
Case "TITI"
LabelA20.Visible = True
ComboBoxA20.Visible = True
TextBoxA20.Visible = True
LabelB20.Visible = False
ComboBoxB20.Visible = False
TextBoxB20.Visible = False
LabelC20.Visible = False
ComboBoxC20.Visible = True
TextBoxC20.Visible = True
Case "TATA"
LabelA20.Visible = True
ComboBoxA20.Visible = True
TextBoxA20.Visible = True
LabelB20.Visible = True
ComboBoxB20.Visible = True
TextBoxB20.Visible = True
LabelC20.Visible = True
ComboBoxC20.Visible = True
TextBoxC20.Visible = True
Case Else
LabelA20.Visible = False
ComboBoxA20.Visible = False
TextBoxA20.Visible = False
LabelB20.Visible = False
ComboBoxB20.Visible = False
TextBoxB20.Visible = False
LabelC20.Visible = False
ComboBoxC20.Visible = False
TextBoxC20.Visible = False
End Select
End Sub

je pensais faire ça

Private Sub ComboBoxTypeAcier(i)_Change()
dm i as variant
for i = 1 to 20)
Select Case ComboBoxTypeAcier(i)
Case "TOTO"
LabelA(i).Visible = True
ComboBoxA(i).Visible = True
TextBoxA(i).Visible = True
LabelB(i).Visible = False
ComboBoxB(i).Visible = False
TextBoxB(i).Visible = False
LabelC(i).Visible = False
ComboBoxC(i).Visible = False
TextBoxC(i).Visible = False
Case "TITI"
LabelA(i).Visible = True
ComboBoxA(i).Visible = True
TextBoxA(i).Visible = True
LabelB(i).Visible = False
ComboBoxB(i).Visible = False
TextBoxB(i).Visible = False
LabelC(i).Visible = False
ComboBoxC(i).Visible = True
TextBoxC(i).Visible = True
Case "TATA"
LabelA(i).Visible = True
ComboBoxA(i).Visible = True
TextBoxA(i).Visible = True
LabelB(i).Visible = True
ComboBoxB(i).Visible = True
TextBoxB(i).Visible = True
LabelC(i).Visible = True
ComboBoxC(i).Visible = True
TextBoxC(i).Visible = True
Case Else
LabelA(i).Visible = False
ComboBoxA(i).Visible = False
TextBoxA(i).Visible = False
LabelB(i).Visible = False
ComboBoxB(i).Visible = False
TextBoxB(i).Visible = False
LabelC(i).Visible = False
ComboBoxC(i).Visible = False
TextBoxC(i).Visible = False
End Select
next i
End Sub

je sais qu il manque encore des choses.
Merci de m'aider

JP