public static IEnumerable <object> getAllEntiresList(int type) { if (type == 1) { return(EmpId.getAllEmpIdList().Cast <object>()); } else if (type == 2) { return(SSN.getAllSSNList().Cast <object>()); } else if (type == 3) { return(ZipCode.getAllZipCodeList().Cast <object>()); } else if (type == 4) { return(Address.getAllCitiesList().Cast <object>()); } else if (type == 5) { //return Person.getAllPersonList().Cast<object>(); return(CardNo.getAllCardNosList().Cast <object>()); } return(new List <object>()); }