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Editorial Team
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Asked: 2026-05-15T16:54:52+00:00

Here is the situation. I have a thread that gets started with the click

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Here is the situation. I have a thread that gets started with the click of a button. It then works for approx 2 min (give or take quite a bit) and then finishes, updating the UI and all along the way. It is quite nice. Now I have decided to add a “Cancel” button to the mix. My question would be what is the best approach to stop a thread from the outside? What methods are best to avoid completely? What resources can I look into myself to get some more knowledge on the topic.

One other piece of info. The program was not written by me, I just “inherited” it, and am now trying to expand it’s functionality in small ways to make it more user friendly.

EDIT: Working with VS2008 and .NET 3.5

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1 Answer

  1. Editorial Team

    In fact if you want to safely cancel some background operation the best approach is to create private boolean field _isCancelled which will be shared between GUI thread and background thread. If user presses cancel you just set _isCancelled to false. And in the background thread regulary check if _isCancelled is turned to true and return the method.

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