// GET: LangleyQuery
        public ActionResult LangleyQuery()
        {
            var           lets        = dbDrive.GetAllLangleyExperimentTables(LangleyPublic.adminId);
            List <string> productName = new List <string>();

            foreach (var let in lets)
            {
                if (!productName.Contains(let.let_ProductName))
                {
                    productName.Add(let.let_ProductName);
                }
            }
            ViewData["pn"] = productName;
            return(View());
        }