private void DeleteMaintenance_Click(object sender, RoutedEventArgs e)
        {
            Maintenance RecupMaintenance = dataGrid.SelectedItem as Maintenance;

            Maintenance LaMaintenance = new Maintenance();

            LaMaintenance.Id_Maintenance = Convert.ToInt32(RecupMaintenance.Id_Maintenance);;

            MaintenanceDAL SuppressionMaintenance = new MaintenanceDAL();

            SuppressionMaintenance.SupprimerMaintenance(LaMaintenance);

            this.NavigationService.Navigate(new GestionMaintenance());
        }