Silverlight What should a worker thread do after finish work?
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So here is my problem with my Windows Phone application.
<br>I have Page 1 that can navigate to Page 2. In Page 2 `OnNavigateTo` I make a async call.
<br>This seems ok the first time I run the application, the async call creates a new worker thread and does work for me which is cool. <br>But I realize that if I go back to Page 1 and re-invoke Page 2 the problem appears: Now I have a new worker thread from the async call while the old one was not terminated. So there is a race between the two worker threads and cause a problem to my application. <br>I don't have direct control to the threads since they are implicitly created by async methods.

So in this case, anyone has suggestion on how to deal with it or is there a common pattern of dealing with this issue?