Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Class CountDown TimeSpan and Timer?

Posted on 2006-06-15
4
Medium Priority
?
1,281 Views
Last Modified: 2008-02-01
I'm attempting to fire an event every 24 hours with the following code.

I would use a simple Timer, but the Interval would be 1440000.........

Q. Is there a more simple approach than my home-brew code found below?


 private void CountDownTimer()
        {
            Timer timer = new Timer();
            timer.Tick += new EventHandler(TimerTick);
            timer.Interval = 60000;  // 60 Seconds
            timer.Start();
        }

        public static void TimerTick(object source, System.EventArgs e)
        {            
            DateTime LeaseDateTime = DateTime.Now.AddHours(24);
            TimeSpan TimeLeft = LeaseDateTime.Subtract(DateTime.Now);

            if (TimeLeft == 0/0/000)
            {
                // Run another method..........
            }
        }
0
Comment
Question by:kvnsdr
  • 2
4 Comments
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 1000 total points
ID: 16916742
If you want to poll then something like...

        private DateTime targetTime;

        private void CountDownTimer()
        {
            targetTime = DateTime.Now.AddDays(1);
            Timer timer = new Timer();
            timer.Tick += new EventHandler(TimerTick);
            timer.Interval = 60000;  // 60 Seconds
            timer.Start();
        }

        public void TimerTick(object source, System.EventArgs e)
        {
            TimeSpan ts = targetTime.Subtract(DateTime.Now);
            if (ts.TotalMilliseconds <= 0)
            {
                // schedule next targeTime 24 hours out
                targetTime = DateTime.Now.AddDays(1);

                // run some method in here...

            }
        }
0
 
LVL 2

Expert Comment

by:kmaicorp
ID: 16917004
If you dont care about polling, why not just make the thread sleeps for 24 hours? Did you wanted to cancel the task before the 24 hours?
0
 
LVL 1

Author Comment

by:kvnsdr
ID: 16917288
I'm simply looking for the best overall solution.

I use polling because of habit more than anything.

Although Thread seems like the most simple approach.

Thread.Sleep(1440000);
0
 
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 16917353
Sleep() is a good approach.  Encapsulate a thread in a Class and put that thread to sleep so it doesn't lock up your GUI.  Then make the class raise a custom event to notify the main UI when to do something.  Be sure to marshal the threaded event back onto the main UI with a Delegate and Invoke().
0

Featured Post

Free Tool: Port Scanner

Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Although it is an old technology, serial ports are still being used by many hardware manufacturers. If you develop applications in C#, Microsoft .NET framework has SerialPort class to communicate with the serial ports.  I needed to…
This article introduced a TextBox that supports transparent background.   Introduction TextBox is the most widely used control component in GUI design. Most GUI controls do not support transparent background and more or less do not have the…
this video summaries big data hadoop online training demo (http://onlineitguru.com/big-data-hadoop-online-training-placement.html) , and covers basics in big data hadoop .
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …
Suggested Courses

885 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question