private DailyBalanceService() { _daoManager = ServiceConfig.GetInstance().DaoManager; _orderDao = _daoManager.GetDao(typeof(IOrderDao)) as IOrderDao; _dailyStatementDao = _daoManager.GetDao(typeof(IDailyStatementDao)) as IDailyStatementDao; _dailyTurnoverDao = _daoManager.GetDao(typeof(IDailyTurnoverDao)) as IDailyTurnoverDao; }