public static void SaveOrderItems(IEnumerable<OrderItem> orderItems)
        {
            var db = new IstokDoorsDBContext();

            foreach (var item in orderItems)
            {
                item.OrderId = LastOrderId.OrderId;

                {
                    db.usp_CreateOrderItem(item.OrderId, item.DoorId, item.Quantity, item.Discount);
                    //db.OrderItems.Add(item);
                    db.SaveChanges();
                }

            }

        }