private void LoadData()
        {
            var list = logic.Read(new PurchaseBindingModel
            {
                ClientId = id
            });

            if (list != null)
            {
                dataGridPurchases.ItemsSource           = list;
                dataGridPurchases.Columns[0].Visibility = Visibility.Hidden;
                dataGridPurchases.Columns[1].Visibility = Visibility.Hidden;
                dataGridPurchases.Columns[4].Visibility = Visibility.Hidden;
            }
        }
        private void WindowBindingReciept_Loaded(object sender, RoutedEventArgs e)
        {
            var listReceipt = logicReceipt.Read(null);

            if (logicReceipt != null)
            {
                ComboBoxReceipt.ItemsSource = listReceipt;
            }
            var listPurchase = logicPurchase.Read(new PurchaseBindingModel {
                ClientId = clientId
            });

            if (listPurchase != null)
            {
                ComboBoxPurchase.ItemsSource = listPurchase;
            }
        }