public void GetToPreviousWindow() { if (OrderedProducts.Any()) { MessageBox.Show("You cannot leave this window while ordered products is not empty", "Exception", MessageBoxButton.OK, MessageBoxImage.Warning); return; } else { var menu = new MenuView(); menu.Show(); CloseAction(); } }
public void ProcessOrderedItems() { if (OrderedProducts.Any()) { var sales = new List <Sale>(); foreach (var item in OrderedProducts) { var sale = new Sale { Amount = item.Quantity * item.Price, Name = item.Name, TransactionDate = DateTime.UtcNow, UomType = item.UomType, Quantity = item.Quantity }; sales.Add(sale); } _context.Sales.AddRange(sales); _context.SaveChanges(); var receiptView = new ReceiptView(); var viewModel = new ReceiptViewModel(); receiptView.DataContext = viewModel; if (viewModel.CloseAction == null) { viewModel.CloseAction = new Action(receiptView.Close); } ((ReceiptViewModel)receiptView.DataContext).LoadOrderedProducts(OrderedProducts.ToModelObservableCollection()); receiptView.ShowDialog(); OrderedProducts.Clear(); RaisePropertyChanged("OrderedProducts"); } else { MessageBox.Show("There is no item to order", "Exception", MessageBoxButton.OK, MessageBoxImage.Warning); return; } }