Private Sub TextBox1_Enter()
CB1.Tag = "1"
End Sub
Private Sub TextBox2_Enter()
CB1.Tag = "2"
End Sub
Private Sub TextBox3_Enter()
CB1.Tag = "3"
End Sub
Private Sub CB1_Click()
Select Case CB1.Tag
Case "1"
UserForm2.Show
Case "2"
userform3.Show
Case "3"
userform4.Show
End Select
'eventuellement reinitialiser CB1.tag
CB1.Tag = ""
End Sub