protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
        {
            // Call the base method.
            base.OnNavigatedFrom(e);



            // Save changes to the database.
            db.SubmitChanges();
        }
        //private List<User> usersList = new List<User>();

        public MainPage()
        {
            InitializeComponent();

            // Connect to the database and instantiate data context.
            db = new IrishSlangCtx(IrishSlangCtx.DBConnectionString);

            // Data context and observable collection are children of the main page.
            this.DataContext = this;

            User u = new User();

            u.name   = "Paddy";
            u.points = 0;
            UserTbl tdi = new UserTbl();

            tdi.UserName = u.name;
            tdi.Points   = u.points;
            db.UserTable.InsertOnSubmit(tdi);
            db.SubmitChanges();
        }