How to make sure that worker thread completes its work when running from main thread.

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Hi all,

Can anybody tell me how to ensure that the worker thread or the background thread which is running from the main thread completes its task or not. I have a thread through which i am polling certain devices along with this i want to update the UI thread & also save the data to database. I want to ensure that all the tasks are completed by the worker thread & then run UI thread continuously. Like run UI thread for polling wait for worker thread to finish its task & continue to poll.

Thanks in advance.

Posted 5-Jun-13 19:58pm

Jagadisha_Ingenious

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Sunasara Imdadhusen 6-Jun-13 2:19am

Have you started anything for the same?

Member 4484632 6-Jun-13 2:30am

Hi,
Use backgroundWorker in the form.
in the backgroud_dowork event call your code and update progress bar until it will finished.

Thanks
Pramod.K

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-06-05T20:28:00

You can either wait for it or abort it (and then wait anyway). Please see:

Waiting for:
http://msdn.microsoft.com/en-us/library/95hbf2ta.aspx[^],
http://msdn.microsoft.com/en-us/library/6b1kkss0.aspx[^],
http://msdn.microsoft.com/en-us/library/23f7b1ct.aspx[^].

Aborting:
http://msdn.microsoft.com/en-us/library/ty8d3wta.aspx[^],
http://msdn.microsoft.com/en-us/library/5b50fdsz.aspx[^].

Many think that abortion is dangerous and hence unacceptable, but this is not true, only if you know very well what you are doing. Abort has nothing to do with ungraceful TerminateThread, and the objections are often based on it, without understanding how it works. This is very non-trivial mechanism. It tried to explain it in my past answers:
Close correcly the thread inside a dll[^],
Problem with creating Process from dedicated thread[^].

—SA