/// <summary>
        /// 取消订餐
        /// </summary>
        /// <param name="userName">用户名</param>
        /// <returns></returns>
        public OperationResult <Boolean> CancelOrder(string userName)
        {
            IOrderDAL orderDAL = OrderDALFactory.CreateOrderDAL();
            int       _user    = orderDAL.DeleteUserOrder(userName);

            if (_user >= 1)
            {
                return(new OperationResult <bool>()
                {
                    Result = true, Message = "取消订餐成功", OrderingState = OrderingStateEnum.IsNullOfOrdering
                });
            }
            else
            {
                return(new OperationResult <bool>()
                {
                    Result = false, Message = "取消订餐失败", OrderingState = OrderingStateEnum.IsNullOfOrdering
                });
            }
        }