http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce Classic : CancelAsync Tue, 14 Apr 2026 23:24:34 -700 Wed, 26 Sep 2007 23:20:48 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=454 http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ http://www.ideablade.com/forum/forum_posts.asp?TID=454&PID=1348#1348 Author: -ook
Subject: 454
Posted: 26-Sep-2007 at 11:20pm

I have a form that is constantly using an asynchronous query. It works well (most of the time, but that is a separate issue).

When I close my windows form, I issue a CancelAsync command, this also works.... most of the time. Occasionally I get an error when the form is closed, I can replicate this error by commenting out the CancelAsync line in the FormClosing event. Therefore I can safely conclude that the CancelAsync command occasionally  does not 'take'. The documentation mentions a race condition may sometimes occur, I believe this is the case.

My question therefore is, what is the recommended solution for ensuring an async command is cancel when called from a FormClosing event?

Thanks
]]> Wed, 26 Sep 2007 23:20:48 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=454&PID=1348#1348