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asp.net threading

Posted on 2012-03-12
Medium Priority
Last Modified: 2012-03-20
I have a long running process.  My plan is to create a page which will execute the process which creates a file.  The page will kick off a thread the return to the user and not wait for it to finish.  The page will have some javascript that will keep pinging the server with a web method.  When the file is created, the webservice will return the url of the file.

1. How can I kick off the thread so that the file is created without waiting for a  callback?  Is there an easy way to kick it off then leave?

2. Is this a good method?  Should I do something else.
Question by:jackjohnson44
LVL 75

Accepted Solution

käµfm³d   👽 earned 2000 total points
ID: 37712032
How can I kick off the thread so that the file is created without waiting for a  callback?  Is there an easy way to kick it off then leave?
If you create a Thread object within your page, then call its Start method, execution will continue without blocking, unless you call Join at some point.

2. Is this a good method?  Should I do something else.
I guess that depends on whether or not you have structured this such that a subsequent request to the page won't try to write the file whilst another thread is doing so. Have you guaranteed that two threads won't compete with each other?

Author Comment

ID: 37714869
Thanks for the response.  I am actually going to pass up a guid and create a file based on that so it should be unique.

a little more info:
I am creating an excel document which could be quite large.  My plan was to load the page which will kick off the process then immediately return to the user and display a "loading" message.  The plan was to keep ping-ing my server using jQuery and search for the file using the name (guid) that I have.  When it finds it, display a link for downloading.  Make sense?

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