public ActionResult Index()
 {
     UsersDAL dal = new UsersDAL();
     IList<UsersModel> list = null;
     try
     {
         list = dal.QuerySQL(" 1=1 and username!='admin'");
     }
     catch (Exception ex)
     {
         Log.Default.Error(ex);
     }
     if (list == null)
         list = new List<UsersModel>();
     ViewBag.list = list;
     return View();
 }