public ActionResult EditArticleCategory(Article_category viewModel)
        {
            var category = dbContext.Article_categorys.Single(c => c.Id == viewModel.Id);

            category.Title     = viewModel.Title;
            category.Parent_Id = viewModel.Parent_Id;
            dbContext.SaveChanges();

            return(RedirectToAction("ListArticleCategory", "Admin"));
        }
        // Xóa Categoty
        public ActionResult DeleteArticleCategory(int id)
        {
            var category  = dbContext.Article_categorys.Single(c => c.Id == id);
            var categorys = new Article_category
            {
                Id        = category.Id,
                Title     = category.Title,
                Parent_Id = category.Parent_Id
            };

            return(View(categorys));
        }
        public ActionResult CreateArticleCategory(Article_category viewModel)
        {
            var category = new Article_category
            {
                Title     = viewModel.Title,
                Parent_Id = viewModel.Parent_Id
            };

            dbContext.Article_categorys.Add(category);
            dbContext.SaveChanges();
            return(RedirectToAction("ListArticleCategory", "Admin"));
        }