For Each ctrlarray In Array(TextBox3, TextBox5, TextBox7, TextBox8, TextBox9, TextBox11, _
TextBox12, TextBox13, TextBox14, TextBox15, TextBox16, TextBox17, _
TextBox18, TextBox19, TextBox20, TextBox21)
If ctrlarray.Value = '' Then
MsgBox 'Vous devez remplir ce champ !'
ctrlarray.SetFocus
Exit Sub
End If
Next