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POendMethod never called in TaskFactory<T>.FromAsync()
 

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  1. POendMethod never called in TaskFactory<T>.FromAsync()
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    <p>I have the following Silverlight code.</p> <pre><code>Container container = new Container("http://localhost:8080/odata"); DataServiceQuery dsq = container.MyEntity; IEnumerable result = Task&lt;IEnumerable&gt;.Factory.FromAsync(dsq.BeginExecute, dsq.EndExecute, null).Result; </code></pre> <p>The problem I am experiencing is that <code>dsq.EndExecute</code> is never called. I watched the HTTP traffic in Fiddler and the request to <code>http://localhost:8080/odata/MyEntity</code> goes out and the response below is received. The Task just doesn't seem to acknowledge that a response was received.</p> <pre><code>HTTP/1.1 200 OK Server: ASP.NET Development Server/11.0.0.0 Date: Mon, 20 May 2013 15:04:16 GMT X-AspNet-Version: 4.0.30319 DataServiceVersion: 3.0 Cache-Control: no-cache Pragma: no-cache Expires: -1 Content-Type: application/atom+xml; charset=utf-8 Content-Length: 562 Connection: Close &lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;feed xml:base="http://localhost:8080/odata/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml"&gt; &lt;id&gt;http://schemas.datacontract.org/2004/07/&lt;/id&gt; &lt;title /&gt; &lt;updated&gt;2013-05-20T15:04:16Z&lt;/updated&gt; &lt;link rel="self" href="http://localhost:8080/odata/MyEntity" /&gt; &lt;author&gt; &lt;name /&gt; &lt;/author&gt; &lt;/feed&gt; </code></pre> <p>Am I doing something wrong?</p>
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    1. USRay Saltrelli
    1. USRay Saltrelli
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    1. CODoes result end up with any value? How do you know **dsg.EndExecute** is never called? Have you tried to wrap **dsg.EndExecute** to set a breakpoint there?
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      1. USPaulo Morgado
    2. COI have tried wrapping it in an anonymous function and setting a break point. It's never hit and Result never returns at all. It's just stuck waiting for a response that has already come.
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      1. USRay Saltrelli
    3. COEven if you were calling form a UI thread I would expect it to Block the UI but not to dead lock. I expect that, if **dsg.EndExecute** isn't called the task will never complete and you never get a result, right?
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      1. POendMethod never called in TaskFactory<T>.FromAsync()
      1. USPaulo Morgado
 

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