public List <AnswerViewModel> GetAnswersByQuestionID(int qid) { List <Answer> a = ar.GetAnswersByQuestionID(qid); var config = new MapperConfiguration(cfg => { cfg.CreateMap <Answer, AnswerViewModel>(); cfg.IgnoreUnmapped(); }); IMapper mapper = config.CreateMapper(); List <AnswerViewModel> avm = mapper.Map <List <Answer>, List <AnswerViewModel> >(a); return(avm); }