c# - 为什么 DispatcherTimer 委托在 WinRT 中工作？

Question

下面的代码适用于 Windows Phone 7

    private void ShowTime()
    {
        txtTime.Text = get24hour();

        //display the Date and week.
        DateTime nowtime = DateTime.Now;
        txtWeek.Text = nowtime.DayOfWeek.ToString();
        txtDate.Text = nowtime.Date.ToString("MM/dd");   

        //create timer to fresh to time
        DispatcherTimer timer = new DispatcherTimer();
        timer.Interval = TimeSpan.FromMinutes(1);
        timer.Tick += timer_Ticker;
        timer.Start();        
    }

    private void timer_Ticker(object sender, EventArgs e)
    {
        txtTime.Text = get24hour();
    }

    private string get24hour()
    {
        return DateTime.Now.ToString("HH:mm");
    }

但 WinRT 中的错误（地铁）

错误部分：

  timer.Tick += timer_Ticker;

错误信息：

  No overload for 'timer_Ticker' matches delegate 'System.EventHandler<object>' 

我该怎么做
我尝试将代码更改为

    private void timer_Ticker()
    {
        txtTime.Text = get24hour();
    }

结果
但它再次不起作用，为什么以及如何解决它？:(

Answer 1

timer.Tick += new EventHandler<object>(timer_Tick); 

private void timer_Tick(object sender, object e)
{
}

参考这个链接

Answer 2

我阅读了 msdn 并将委托方法更改为下面并且它可以工作：

    private void timer_Ticker(object sender, object e)
    {
        txtTime.Text = get24hour();
    }