ASP.NET Long Process and Sending updates to Browser

I've asked this before but I was hoping for another answer and perhaps some code samples because I've been having a difficult time with this. I have an asp.net page. The user hits the "Run" button and I have code IN AN ASSEMBLY, not in the APP_CODE folder that is called and runs a long process that moves product info from a file into the database. While the user waits, I would like them to see status updates like what product the import process in on and status info. I'm assuming I'd break off into another thread and use Ajax but I have开发者_开发百科 no idea how to do this. Some code samples would be very helpful, thanks.

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A simpler way to do this without needing to go into multi threading (which can cause all sorts of nasty, hard to track down bugs) is to use AsyncResults in .NET and AJAX which allow you to query a process.

A good example to start you off can be found here.

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found it by using HttpResponse.Flush