private void _buttonDaillyFactureNouveau_Click_1(object sender, RoutedEventArgs e)
        {
            DaillyFactureWindow daillyFactureWindow = new DaillyFactureWindow(new ObservableCollection<Commande>(((Dailly)this.DataContext).Commande));
            daillyFactureWindow.DataContext = new Dailly_Cession_Facture();

            bool? dialogResult = daillyFactureWindow.ShowDialog();

            if (dialogResult.HasValue && dialogResult == true)
            {
                ((Dailly)this.DataContext).Dailly_Cession_Facture.Add((Dailly_Cession_Facture)daillyFactureWindow.DataContext);
            }
            else
            {
                try
                {
                    ((App)App.Current).mySitaffEntities.Detach((Dailly_Cession_Facture)daillyFactureWindow.DataContext);
                }
                catch (Exception)
                {
                }
            }

            this._dataGridFacture.Items.Refresh();
        }
        private void _buttonDaillyFactureModifier_Click_1(object sender, RoutedEventArgs e)
        {
            if (this._dataGridFacture.SelectedItems.Count == 1)
            {
                DaillyFactureWindow daillyFactureWindow = new DaillyFactureWindow(new ObservableCollection<Commande>(((Dailly)this.DataContext).Commande));
                daillyFactureWindow.DataContext = (Dailly_Cession_Facture)this._dataGridFacture.SelectedItem;

                bool? dialogResult = daillyFactureWindow.ShowDialog();

                if (dialogResult.HasValue && dialogResult == true)
                {
                }
                else
                {
                    //Je récupère les anciennes données de la base sur les modifications effectuées
                    ((App)App.Current).mySitaffEntities.Refresh(System.Data.Objects.RefreshMode.StoreWins, (Dailly_Cession_Facture)(daillyFactureWindow.DataContext));
                }
            }
            else
            {
                MessageBox.Show("Vous devez sélectionner un litige.", "Attention", MessageBoxButton.OK, MessageBoxImage.Exclamation);
            }
        }