private void Window_Loaded(object sender, RoutedEventArgs e)
{
// dtPrepose.ItemsSource = myBDD1.Preposes.ToList();
myBDD1 = new NHLEntities();
refresh();
}
public Ajout_Sup_Modif(NHLEntities myBDD)
{
InitializeComponent();
myBDD1 = myBDD;
}