public ActionResult Details(int?id, int?page)
        {
            if (id == null)
            {
                return(new HttpStatusCodeResult(HttpStatusCode.BadRequest));
            }
            Category category = Data.Categories.GetById((int)id);

            if (category == null)
            {
                return(HttpNotFound());
            }
            CategoryDetailViewModel categoryModel = CategoryDetailViewModel.TransformToViewModel(category);

            return(View(categoryModel));
        }