/// <summary>
        /// 获取化验单最近一次体检
        /// </summary>
        /// <param name="IDCardNo"></param>
        /// <param name="CheckDate"></param>
        /// <returns></returns>
        public RecordsCustomerBaseInfoModel GetBiochemical(string IDCardNo, string CheckDate = "")
        {
            DataSet ds = dal.GetBiochemical(IDCardNo, CheckDate);

            if (ds != null && ds.Tables.Count > 0)
            {
                List <RecordsCustomerBaseInfoModel> list = ModelConvertHelper <RecordsCustomerBaseInfoModel> .ToList(ds.Tables[0]);

                if (list.Count > 0)
                {
                    return(list[0]);
                }
            }

            return(null);
        }