public JsonpResult UpdateComponent(string appid, string componentid, string compName, string title, string category, string titleformat)
        {
            string clientid = Request.Params["clientkey"];
            var    a        = new Tz.App.AppManager(clientid, appid);

            a.GetComponents();
            var comp = a.GetComponent(componentid);

            if (comp != null)
            {
                comp.ComponentName = compName;
                comp.Title         = title;
                comp.TitleFormat   = titleformat;
                comp.Category      = category;

                return(new JsonpResult(a.UpdateComponent(comp)));
            }
            else
            {
                throw new Exception("This component not exist. Please contact service provider");
            }
        }