public JsonResult DeleteShippedDate(int OrderID)
        {
            OrdersRepository repository = new OrdersRepository();
            var order = repository.FindById(OrderID);

            if (order.Status == "送貨中")
            {
                repository.DeleteShippedDateAndStatus(OrderID);
                return(Json(""));
            }
            else
            {
                return(Json("無效點取"));
            }
        }