public JsonResult LoginCheck(string txtUname, string txtPWD)
        {
            var result = false;
            var msg    = "操作失败";
            var Dt     = CommonBusiness.GetAppSet().Where(x => x.KName == "Login").FirstOrDefault();

            if (Dt != null && Dt.AutoID > 0)
            {
                if (Dt.KValue == txtUname && txtPWD == Dt.KValue)
                {
                    Session["IsLogin"] = txtPWD;
                    result             = true;
                }
            }
            JsonDictionary.Add("result", result);
            JsonDictionary.Add("Errmsg", msg);
            return(new JsonResult
            {
                Data = JsonDictionary,
                JsonRequestBehavior = JsonRequestBehavior.AllowGet
            });
        }