public ActionResult AddCategory(string Category)
        {
            var repo = new CategoryDataBase();
            repo.AddNewCategory(Category);

            return RedirectToAction("ManageCategory");
        }
        public JsonResult AddCategoryJ(string Category)
        {
            var cd = new CategoryDataBase();
            cd.AddNewCategory(Category);

            IEnumerable<Category> categories = cd.GetAllCategoriess();

            return Json(categories, JsonRequestBehavior.AllowGet);
        }