C# Form Get Action done nonstop

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I would like to know how I can do some action again and again without something to happen like mousemove for example i want to create random numbers till i close the program.

EDIT:
When I'm trying to put the while(true) the program cannot be started i just want to change picture location by random numbers and i want to do this until the program close

Posted 4-Apr-11 23:33pm

Member 7799612

Updated 4-Apr-11 23:54pm

v2

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4 solutions

Solution 4

Create a thread which will generate random number for you .... so your UI will not be blocked. abort the thread when exiting from the form.
Or use a timer event if you want to generate the Random number in timely fashion...

Posted 5-Apr-11 0:31am

ciacia

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Sergey Alexandrovich Kryukov 5-Apr-11 11:52am

Basically good, but -- not a timer, please! Why? Timers are best avoided.
My 4.
--SA

Solution 1

C#

while (true)
{
    //some code here
}

That's an infinite loop

Edit:
Let me expand on that a bit....if this is a Winforms app and you execute this on the UI thread, you'll block your UI. Either execute on a background thread or make the loop exit at some point

You can force the loop to exit by using a break; statement if the loop meets some condition

Posted 4-Apr-11 23:41pm

Dylan Morley

Updated 4-Apr-11 23:46pm

v2

Comments

Olivier Levrey 5-Apr-11 6:17am

Op commented: When I'm trying to put the while(true) the program cannot be started i just want to change picture location by random numbers and i want to do this until the program close

Solution 3

You can give the loop command for this action....
Do-While can be the best method....

Posted 4-Apr-11 23:54pm

Santoshshrest

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-04-05T05:56:00

You should never ever use loop in order to delay some thread. This is called spin-wait and should not be tolerated. First, you need to create a separate thread. If you need to keep the thread from execution until something happen, use System.Threading.EventWaitHandle.

When a thread calls the blocking method EventWaitHandle.WaitOne it is put to a wait state by the OS: switched off and never scheduled back to execution before awaken, thus spending zero CPU time. It can only be awaken by EventWaitHandle.Set or System.Threading.Thread.Abort called by other thread.

—SA