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POCall MVC async action through Ajax, start task, send the ajax response before the task completes?
 

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  1. POCall MVC async action through Ajax, start task, send the ajax response before the task completes?
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    <p>I have the following scenario:</p> <p>I have an MVC Async Controller that has an upload action, which processes a csv file and saves the data to the database using nHibernate. This is called using </p> <pre><code> Task&lt;Nacr.Core.Entities.FileLoad.Job&gt;.Factory.StartNew(() =&gt; { _fileUploadService.ProcessJob(job); } }); </code></pre> <p>Currently the action is called thorugh an ajax call, and I am waiting for the ProcessJob to finish before sending back my response to the originating ajax call.</p> <p>I am notifiying the user of the files progress using a signalR notifier hub to populate a record count and progress bar on the UI, which works a treat. Therefore is no need for the ajax call to wait for this to complete, as the results are visible during processing.</p> <p>However, if I close the ajax call after I have started the processJob running, I get the following error:</p> <pre><code> System.ObjectDisposedException: Session is closed! </code></pre> <p>This is due to the fact that the Session is registered with a PerWebRequest lifestyle in Windsor, but my question is is there any way that the session can be used after the ajax call has had a response?</p> <p>The reason for my question is that for very large files, the ajax request appears to be recalling the processJob after around a minute, presumably due to the fact that it has waited for too long without receiving a response for the original request.</p> <p>My original question on this can be viewed here: <a href="https://stackoverflow.com/questions/16215205/async-controller-action-re-called-after-one-minute">Async Controller Action Re-Called after one minute</a></p>
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    1. USDeclan McNulty
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    1. COYour problem is more of a castle-Windsor problem, not anything specific to MVC or nhiberbnate or even ajax. I don't know much about castle-Windsor, but it sounds like you need to configure this particular injection to use a self-disposable resource. Also, it's unclear if you really need an async controller here because you're not really synchronizing any requests if you just return right away.
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      1. USErik Funkenbusch
 

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