public static AirportPriceMarginCollection LoadListByAdmin(int adminID)
        {
            AirportPriceMarginCollection collection = new AirportPriceMarginCollection();

            collection.LoadByAdminID(adminID);
            return(collection);
        }
        public static AirportPriceMarginCollection DeleteAirportPriceMargin(int id)
        {
            AirportPriceMarginCollection collection = new AirportPriceMarginCollection();

            collection.DeleteAirportPriceMargin(id);
            return(collection);
        }
        public static AirportPriceMarginCollection LoadList()
        {
            AirportPriceMarginCollection collection = new AirportPriceMarginCollection();

            collection.LoadAll();
            return(collection);
        }