Question

I’m trying to execute a function periodically, using a System.Threading.Timer. It calls the function, but it doesn’t work, and doesn’t report an error. Why?

 public class Timerr
 {
    ArrayList listurl;
    ArrayList listcategory;
    protected Collection<Rss.Items> list = new Collection<Rss.Items>();
    RssManager reader = new RssManager();
    System.Threading.Timer Timer;
    System.DateTime StopTime;
    public void Run()
    {
        StopTime = System.DateTime.Now.AddMinutes(1);
        Timer = new System.Threading.Timer(TimerCallback, null, 0,1000);
    }

    private void TimerCallback(object state)
    {
        if (System.DateTime.Now >= StopTime)
        {
            Timer.Dispose();
            return;
        }
        callrss();
    }
}

Answer 1

This works in LINQPad:

void Main()
{
    var t = new Timerr();
    t.Run();

    Thread.Sleep(60000);
}

public class Timerr
 {
    System.Threading.Timer Timer;
    System.DateTime StopTime;
    public void Run()
    {
        StopTime = System.DateTime.Now.AddMinutes(1);
        Timer = new System.Threading.Timer(TimerCallback, null, 0,1000);
    }

    private void TimerCallback(object state)
    {
        if (System.DateTime.Now >= StopTime)
        {
            Timer.Dispose();
            return;
        }
        Console.WriteLine("Hello");
    }
}

I recommend you install the free LINQPad with which you can check such things very quickly, without the need to run your entire application