public ActionResult DeleteMenu() { string json = Request["data"]; if (string.IsNullOrWhiteSpace(json)) { throw new BusinessException("请选择要删除的菜单"); } int sysno = 0; int.TryParse(json, out sysno); if (sysno == 0) { throw new BusinessException("传入的菜单编号不是有效编号"); } menu_service.DeleteSysMenu(sysno); return(Json(new AjaxResult { Success = true, Data = "删除成功" }, JsonRequestBehavior.AllowGet)); }