private void navigation_validate(HttpContext context) { string navname = MXRequest.GetString("param"); string old_name = MXRequest.GetString("old_name"); if (string.IsNullOrEmpty(navname)) { context.Response.Write("{ \"info\":\"该导航菜单ID不可为空!\", \"status\":\"n\" }"); return; } if (navname.ToLower() == old_name.ToLower()) { context.Response.Write("{ \"info\":\"该导航菜单ID可使用\", \"status\":\"y\" }"); return; } //检查保留的名称开头 if (navname.ToLower().StartsWith("channel_")) { context.Response.Write("{ \"info\":\"该导航菜单ID系统保留,请更换!\", \"status\":\"n\" }"); return; } var bll = new NavigationService(new NavigationRepository(siteConfig.sysdatabaseprefix)); if (bll.Exists(navname)) { context.Response.Write("{ \"info\":\"该导航菜单ID已被占用,请更换!\", \"status\":\"n\" }"); return; } context.Response.Write("{ \"info\":\"该导航菜单ID可使用\", \"status\":\"y\" }"); return; }