private String GetClientSelectList(HttpContext context)
        {
            try
            {
                //get uploaded params
                var settings = GetAjaxFields(context);
                if (!settings.ContainsKey("itemid")) settings.Add("itemid", "");
                var productitemid = settings["itemid"];
                if (!settings.ContainsKey("header")) settings.Add("header", "");
                if (!settings.ContainsKey("body")) settings.Add("body", "");
                if (!settings.ContainsKey("footer")) settings.Add("footer", "");
                if (!settings.ContainsKey("searchtext")) settings.Add("searchtext", "");

                // get template
                var themeFolder = StoreSettings.Current.ThemeFolder;
                if (settings.ContainsKey("themefolder")) themeFolder = settings["themefolder"];
                var templCtrl = NBrightBuyUtils.GetTemplateGetter(themeFolder);
                var headTempl = templCtrl.GetTemplateData(settings["header"], _lang, true, true, true, StoreSettings.Current.Settings());
                var bodyTempl = templCtrl.GetTemplateData(settings["body"], _lang, true, true, true, StoreSettings.Current.Settings());
                var footTempl = templCtrl.GetTemplateData(settings["footer"], _lang, true, true, true, StoreSettings.Current.Settings());

                //get data
                var prodData = ProductUtils.GetProductData(productitemid, _lang);
                var objCtrl = new NBrightBuyController();
                var userlist = objCtrl.GetDnnUsers(prodData.Info.PortalId, "%" + settings["searchtext"] + "%", 0,1,20,20);

                var l = new List<NBrightInfo>();
                l.Add(prodData.Info);
                var strHead = GenXmlFunctions.RenderRepeater(l, headTempl);
                var strOut = GenXmlFunctions.RenderRepeater(userlist, bodyTempl);
                var strFoot = GenXmlFunctions.RenderRepeater(l, footTempl);

                return strHead + strOut + strFoot;

            }
            catch (Exception ex)
            {
                return ex.ToString();
            }
        }