public List <Employee> GetAllEmployees() { DALC.DALC oDALC = new DALC.DALC(); oDALC.connStr = this.connStr; List <Employee> oList = oDALC.GetAllEmployees(); oList.RemoveAll(x => x.SALARY < 2000); oList.RemoveAll(x => x.AGE < 20 || x.AGE > 40); return(oList); }