Question

我试图在按钮上异步更新计时器。

例如我设定时间= 60秒

当我在几个TIME之后运行程序时，计时器已经达到45秒，当我单击按钮时，它应该添加j = 15秒的时间，并且计时器应该异步更改为60秒。请帮忙

    private int time = 60;
    DateTime dt = new DateTime();
    private j = 15 ;
    private DispatcherTimer timer;

    public MainWindow()
    {
        InitializeComponent();
        timer = new DispatcherTimer();
        timer.Interval = new TimeSpan(0, 0, 1);
        timer.Tick += timer_tick;
        timer.Start();
        }

    void timer_tick(object sender, EventArgs e)
    {
        if (time >0)
        {
          time--;
            text.Text = TimeSpan.FromSeconds(time).ToString();
        }
        else
        {
            timer.Stop();
        }
    }

  private void Button_Click(object sender, RoutedEventArgs e)
    {
        text.Text = dt.AddSeconds(j).ToString("HH:mm:ss");
    }

Answer 1

以下是我的代码，您可以尝试使用它。

    private int time = 60;
    DateTime dt = new DateTime();
    private int j = 15;
    private Timer timer1 = new Timer();


    void timer_tick(object sender, EventArgs e)
    {
        if (time > 0)
        {
            time--;
            text.Text = TimeSpan.FromSeconds(time).ToString();
        }
        else
        {
            timer1.Stop();
        }
    }

    public timer()
    {
        InitializeComponent();
        timer1 = new Timer();
        timer1.Interval = 1000;
        timer1.Tick += timer_tick;
        timer1.Start();
    }



    private void button1_Click(object sender, EventArgs e)
    {
        time += j;
    }

如何异步递增计时器？

1 个答案: