public List <Product> GetProductsNotInCategorie() { IDalCategorie DAL = DalFactory.CreateCategorieDal(); List <DtoProduct> DTOs = DAL.GetProductsNotInCategorie(id); List <Product> products = new List <Product>(); foreach (DtoProduct DTO in DTOs) { Product newProduct = new Product(DTO); products.Add(newProduct); } return(products); }