小编cat*_*lva的帖子

我正在做一个倒计时，应该在计数中显示一个标签，但是我的视图控制器上的标签（lblMostrador）不显示文本。该代码正确，因为输出框正确显示了计数。标签是否有特殊配置？

局部类EsquerdaViewController：UIViewController {

    private System.Timers.Timer aTimer;
    private DateTime tempo   = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 1, 0);
    private DateTime tempo2  = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 1);


    public EsquerdaViewController (IntPtr handle) : base (handle)
    {
    }

    public override void ViewDidLoad()
    {
        base.ViewDidLoad ();
        Console.WriteLine ("Testando...");

        btnVoltar.TouchUpInside += (sebder, e) => 
        {
            NavigationController.PopViewController(true);
        };


        btnIniciar.TouchUpInside += (sender, e) =>
        {
            aTimer = new System.Timers.Timer(1000);

            aTimer.Elapsed += OnTimedEvent;

            aTimer.AutoReset = true;

            aTimer.Enabled = true;

        };


    }

    private void OnTimedEvent(Object source, System.Timers.ElapsedEventArgs …