public JsonResult AddCategory() { JsonResult res = new JsonResult(); JsonMessage message = new JsonMessage() { Status="ok"}; User user = (User)Session["User"]; ShopManager shopMgr = new ShopManager(user); string name = Request["name"]; string pid = Request["pid"]; int parentId = 0; int.TryParse(pid,out parentId); if (string.IsNullOrEmpty(name)) { message.Status = "failed"; message.Message = "类目名称不能为空"; } else { if (shopMgr.IsCategoryExist(parentId, name)) { message.Status = "failed"; message.Message = "类目名称已经存在"; res.Data = message; } else { Category cate = shopMgr.CreateCategory(parentId, name); message.Item = cate; res.Data = message; } } return res; }