public List<CreateBookSystem> createBookSystemDataBase(CreateBookSystem bookSystemData) { AdministrationDataBase aDB = new AdministrationDataBase(); aDB.libraryFunction(); List<CreateBookSystem> returnValue = new List<CreateBookSystem>(); if (int.Parse(aDB._StaffhaveRoles[2]) == 1) { returnValue=aDB.createBookSystemDataBase(bookSystemData); } else { CreateBookSystem addValue = new CreateBookSystem(); addValue.checkNo = _noRole; addValue.errorMsg = _errorMsg; returnValue.Add(addValue); } return returnValue; }