Sub RetirerPersonne()
Chaine = [Nom] & " " & [Prénom]
With Sheets("Suivi des formations")
NbLig = Application.CountIf(.Range("D20:D1000"), "*")
For i = 20 To 20 + NbLig
If .Cells(i, 4) = Chaine Then .Cells(i, 4).EntireRow.Hidden = True
Next i
End With
End Sub