Private Sub Btnsupprimer_click()
' Suppression participants
With Sheets("Liste")
DerLig = .Range("B65500").End(xlUp).Row
For L = DerLig To 2 Step -1
If .Cells(L, "B") = ComboBox1 Then
.Cells(L, 1).EntireRow.Delete
End If
Next L
End With
End Sub