http://msmvps.com/blogs/luisabreu/archive/2009/06/10/multithreading-the-apm-pattern-and-polling-for-completion.aspxIn this post we’re going to take a look at how we can use polling to see if an asynchronous task has completed. As we’ve seen , the IAsyncResult instance returned from the BeginXXX method (that started an asynchronous task) has an IsCompleted propertyenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/luisabreu/archive/2009/06/10/multithreading-the-apm-pattern-and-polling-for-completion.aspx#1694950Thu, 11 Jun 2009 02:46:57 GMTd67277c4-116b-43f1-b688-e9ef184ea916:16949509eFish<p>9efish.感谢你的文章 - Trackback from 9eFish</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1694950" width="1" height="1">