public IEnumerable <TestViewModel> DisplayAllDetails() { IEnumerable <Test> test = testRepository.DisplayAllDetails(); var config = new MapperConfiguration(cfg => { cfg.CreateMap <Test, TestViewModel>(); cfg.IgnoreUnmapped(); }); IMapper mapper = config.CreateMapper(); IEnumerable <TestViewModel> allTests = mapper.Map <IEnumerable <Test>, IEnumerable <TestViewModel> >(test); return(allTests); }