定时器运行完毕后如何停止它？

发布于 2024-09-19 07:47:29 字数 280 浏览 7 评论 0原文

我有一个控制台应用程序，在主方法中，我有这样的代码：

Timer time = new Timer(seconds * 1000); //to milliseconds
time.Enabled = true;
time.Elapsed += new ElapsedEventHandler(time_Elapsed);

我只希望计时器运行一次，所以我的想法是我应该在 time_Elapsed 方法中停止计时器。但是，由于我的计时器存在于 Main() 中，因此我无法访问它。

原文

I have a Console App and in the main method, I have code like this:

Timer time = new Timer(seconds * 1000); //to milliseconds
time.Enabled = true;
time.Elapsed += new ElapsedEventHandler(time_Elapsed);

I only want the timer to run once so my idea is that I should stop the timer in the time_Elapsed method. However, since my timer exists in Main(), I can't access it.

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紫竹語嫣☆ 2024-09-26 07:47:29

您可以访问 timer_Elapsed 方法内部的计时器：

public void timer_Elapsed(object sender, ElapsedEventArgs e)
{
    Timer timer = (Timer)sender; // Get the timer that fired the event
    timer.Stop(); // Stop the timer that fired the event
}

上述方法将停止任何计时器触发的事件（如果您有多个计时器使用相同的处理程序，并且您希望每个计时器具有相同的行为））。

您还可以在实例化计时器时设置行为：

var timer = new Timer();
timer.AutoReset = false; // Don't reset the timer after the first fire

You have access to the Timer inside of the timer_Elapsed method:

public void timer_Elapsed(object sender, ElapsedEventArgs e)
{
    Timer timer = (Timer)sender; // Get the timer that fired the event
    timer.Stop(); // Stop the timer that fired the event
}

The above method will stop whatever Timer fired the Event (in case you have multiple Timers using the same handler and you want each Timer to have the same behavior).

You could also set the behavior when you instantiate the Timer:

var timer = new Timer();
timer.AutoReset = false; // Don't reset the timer after the first fire

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贵在坚持 2024-09-26 07:47:29

一个小示例应用程序：

    static void Main(string[] args)
    {
        int seconds = 2;
        Timer time = new Timer(seconds * 1000); //to milliseconds
        time.Enabled = true;
        time.Elapsed += new ElapsedEventHandler(MyHandler);

        time.Start();

        Console.ReadKey();
    }

    private static void MyHandler(object e, ElapsedEventArgs args)
    {
        var timer = (Timer) e;
        timer.Stop();
    }

A little example app:

    static void Main(string[] args)
    {
        int seconds = 2;
        Timer time = new Timer(seconds * 1000); //to milliseconds
        time.Enabled = true;
        time.Elapsed += new ElapsedEventHandler(MyHandler);

        time.Start();

        Console.ReadKey();
    }

    private static void MyHandler(object e, ElapsedEventArgs args)
    {
        var timer = (Timer) e;
        timer.Stop();
    }

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