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PONotSupportedException when trying to parse plist document
 

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  1. PONotSupportedException when trying to parse plist document
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    <p>I'm currently working on a Windows Phone 7 Application for the company I work for. For the configuration part I'd like to share the configuration that is used for our iPhone Application and stored on a remote server in a plist file. </p> <p>I use <code>System.Xml.Linq.XDocument</code> to <code>Parse</code> a string I downloaded using a WebClient instance.</p> <p>This is the code:</p> <pre><code> Uri plistLocation = new Uri(@"http://iphonevnreporter.vol.at/Settings.bundle/mw_test.plist"); WebClient client = new WebClient(); try { client.DownloadStringCompleted += ((sender,e) =&gt; { if (e.Error == null) { XDocument xdoc = XDocument.Parse(e.Result); //XElement element = XElement.Parse(e.Result.ToString()); var dictItems = xdoc.Descendants("dict"); foreach (XElement elem in dictItems) { } } }); } catch (Exception e) { } client.DownloadStringAsync(plistLocation); </code></pre> <p>In this example the plist is just having a <code>dict</code> Element under the root <code>plist</code> element and nevertheless I am receiving the <code>NotSupportedException</code>. The Exception occurs at <code>XDocument.Parse(e.Result)</code>.</p> <p>This is the StackTrace:</p> <pre><code> at System.Xml.XmlTextReaderImpl.ParseDoctypeDecl() at System.Xml.XmlTextReaderImpl.ParseDocumentContent() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.Linq.XDeclaration..ctor(XmlReader r) at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options) at System.Xml.Linq.XDocument.Parse(String text, LoadOptions options) at System.Xml.Linq.XDocument.Parse(String text) at VorarlbergOnline.MainViewModel.&lt;FillSections&gt;b__10( Object sender, DownloadStringCompletedEventArgs e) at System.Net.WebClient.OnDownloadStringCompleted (DownloadStringCompletedEventArgs e) at System.Net.WebClient.DownloadStringOperationCompleted(Object arg) at System.Threading.ThreadPool.WorkItem.WaitCallback_Context(Object state) at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state) at System.Threading.ThreadPool.WorkItem.doWork(Object o) at System.Threading.Timer.ring() </code></pre> <p>Loading other XML files works fine, so the code seems to be ok. I checked if the referenced dtd could be the problem, but it loads fine. So I'm kind of out of ideas now.</p>
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    1. COWhich line is throwing the exception? We can't tell. It's also not at all clear why you have an empty catch block - never a good idea. Also, is there any more information in the message than just `NotSupportedException`?
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    2. COAs I said the exception is thrown by `XDocument.Parse(e.Result);`. I haven't implemented error handling yet, therefore the empty Exception. The thrown Exception has just "NotSupportedException" as its Message.
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