Salut Jean,
modifie le code du Private Sub ComboBox2_Change() comme suivant:
Private Sub ComboBox2_Change()
Dim plage_2 As Integer, i As Integer
Dim Ligne_CB2 As Long
Ligne_CB2 = Me.ComboBox2.ListIndex + 2
For i = 3 To 5
Me.Controls("TextBox" & i) = ""
Next i
If Me.ComboBox2.ListIndex = -1 Then Exit Sub
For plage_2 = 3 To 5
Me.Controls("TextBox" & plage_2) = Ws_feuil1.Cells(Ligne_CB2, plage_2)
Next plage_2
End Sub
Bonne chance