// GET api/<controller>
        public IEnumerable <AirportCodeSearch> Get(string query = "", string filterOption = null)
        {
            string newfilterOptions = null;

            using (var db = new AirportDataDB())
            {
                if (filterOption == "0")
                {
                    newfilterOptions = null;
                }
                else
                {
                    newfilterOptions = filterOption;
                }
                List <AirportCodeSearch> eItem = db.Database.SqlQuery <AirportCodeSearch>("[dbo].[AirportCode_SelectAC] @p0, @p1", query, newfilterOptions).ToList();
                return(eItem.ToList());
            }
        }