Execute a function until 5 minutes in WPF

Question

In a WPF form I'm calling doSomeFunction() method in a while loop. This will run until x == y which works properly.

while (x != y)
{
   doSomeFunction();
}

I need to add additional functionality, which needs to check this condition until 5 minutes only. After the 5 minutes if x != y I need to return.

Possible duplicate of [Calling a method every x minutes](https://stackoverflow.com/questions/13019433/calling-a-method-every-x-minutes) — xdtTransform, Apr 18 '19 at 06:12
Not a duplicate. Please read the question. Here I'm asking to call method for a 5 minutes. But in your link showing answer for call a method in each 5 mins again and again. — Tom, Apr 18 '19 at 06:43
well you are right that's not the correct duplicate. Maybe i got lost into all the tab I got from the google search. [look](https://social.msdn.microsoft.com/Forums/vstudio/en-US/fb6b6f4f-ae2f-44f4-9b31-8ac92b311049/exit-while-loop-after-x-minutes?forum=csharpgeneral), let me find the equivalent of this on Stackoverflow. So I will be damned if t was not a dupe. Dupe are not bad things. If you didn't find the solution while looking for it. One must make the already existing solution more visible so anyone could find it. — xdtTransform, Apr 18 '19 at 06:53

score 3 · Accepted Answer · edited Apr 18 '19 at 05:41

3

Much cleaner and clear approach, You can also make use of stopwatch

Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
while (x != y && stopwatch.Elapsed.Minutes <=5)
{
  doSomeFunction();
 }
stopWatch.Stop();

edited Apr 18 '19 at 05:41

Justin CI

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answered Apr 18 '19 at 05:19

Vikas Gupta

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2

Note that this will block the UI for 5 minutes! – Emond Apr 18 '19 at 06:16

Avinash Reddy · Answer 2 · 2019-04-18T08:26:50.713

2

You can take the EnterTime time and check

 DateTime EnterTime = DateTime.Now;
 while (x != y && EnterTime.AddMinutes(5) >= DateTime.Now)
  {
      doSomeFunction();
   }

If both conditions are true then loop will execute

edited Apr 18 '19 at 08:26

answered Apr 18 '19 at 05:15

Avinash Reddy

937
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Note that this will block the UI for 5 minutes! – Emond Apr 18 '19 at 06:15
@ErnodeWeerd Yes, I know. but he never mentioned that he is using it for UI may be a background work. – Avinash Reddy Apr 18 '19 at 06:17
I'm using this inside a back ground worker. Will that be a issue? – Tom Apr 18 '19 at 06:41
1

@Tom - That depends on where and how you are calling it. We can't tell unless you show us the full code – Emond Apr 18 '19 at 07:31

score 0 · Answer 3 · answered Apr 18 '19 at 06:00

0

You can also use the Task library and specify a timeout.

    Task.Factory.StartNew(() =>
    {
        while (x != y)
        {
            // if actions are being performed on UI controls then please do invoke
            Console.Write("test");
        }
    }).Wait(millisecondsTimeout:30000);

answered Apr 18 '19 at 06:00

peeyush singh

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It will run for 30000 millisec even though the condition is false. Hence it is not the correct solution – Vikas Gupta Apr 18 '19 at 09:10
@VikasGupta true, on the other hand in the case your answer the time condition is useless, since in case x==y the loop will exit straightaway, and there is no in between code that might delay checking the condition. Also user did state that he want to check the condition until 5 mins. I think there is a bit of ambiguity in the question, though since the user has accepted your answer, it must be the right functionality....just that the timestamp check makes no sense if x==y, the only place it works is when x!=y initially and then switches to x==y, in that case there is a difference.... – peeyush singh Apr 19 '19 at 03:06
ahh got it now, yeah will update the answer with a cancellable task, but agreed your answer is much simpler then,.....also from comments the user is already on the background thread. – peeyush singh Apr 19 '19 at 03:14

Execute a function until 5 minutes in WPF

3 Answers3