public virtual T GetByEntityName(object id, string EntityTypeName)        {            dynamic repository = GetEFRepository(EntityTypeName);            if (repository != null)                return repository.Entities.Find(id);            else                return null;        }                public virtual dynamic GetRecordRepository(string EntityTypeName)        {            dynamic repository = GetEFRepository(EntityTypeName);            if (repository != null)            {                var type = repository.GetType().GetGenericArguments()[0];                dynamic part = Activator.CreateInstance(type);                return part;            }            else            {                return null;            }        }
        private object GetEFRepository(string EntityTypeName)
        {

          

            if (_repositoryDictionary == null)
            {
                var typesToRegister = TypeUtil.GetEntityTypes();
                _repositoryDictionary = new Dictionary<string, object>();
                foreach (var type in typesToRegister)
                {
                    object repository = Activator.CreateInstance(typeof(EfRepository<>).MakeGenericType(type), _context);

                    _repositoryDictionary[type.Name] = repository;
                }
            }

            if (_repositoryDictionary.ContainsKey(EntityTypeName))
                return _repositoryDictionary[EntityTypeName];
            else
                return null;
        }

 public class TypeUtil    {        public static IList<Type> GetEntityTypes()        {            var cacheManager = new MemoryCacheManager();            return cacheManager.Get("ENTITY-TYPE-ASSEMBLY", () =>            {                var typesToRegister = Assembly.GetExecutingAssembly().GetTypes()                 .Where(type => (typeof(BaseEntity).IsAssignableFrom(type) && (type.GetConstructor(Type.EmptyTypes) != null)));                return typesToRegister.ToList();            });                    }    }

 [Test]        public void TypeUtilTest()        {            var n = _repository.GetRecordRepository("NewsEntity");            dynamic nm = _repository.GetByEntityName(1, "NewsEntity");            var title = nm.Title;            var c = _repository.GetRecordRepository("NewsCommentEntity");            dynamic cm = _repository.GetByEntityName(1, "NewsCommentEntity");            var comment = cm.Comment;            string pass = title + "\n" + comment;            Assert.Pass(pass);                   }