public static bool DeleteOneBts(this IBtsRepository repository, ITownRepository townRepository, string districtName, string townName, string btsName) { int townId = townRepository.GetAllList().QueryId(districtName, townName); CdmaBts bts = repository.QueryBts(townId, btsName); if (bts == null) { return(false); } repository.Delete(bts); return(true); }