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(); } } }