XML Deserialization - Missing Namespace

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Hi There,
I doing a project that uses XML Serialization to open existing XML files. It turns out that the XML's that my project loads are missing a namespace declaration.
The program that creates the XML's uses this "xlink" namespace but it never defines it. Because of this missing namespace declaration when my code tries to deserialize the XML it throws an exception. Is it possible to define this "xlink" namespace before I try to deserialize the XML document so that it won't throw an exception?

My Code:

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  1  XmlSerializer pageDeserializer = new XmlSerializer(typeof(ContentPage));
  2  TextReader pageReader = new StreamReader(pathToFolder + "\\" + Resources.DEFAULT_PAGE_name);
  3  this.contentPage = (ContentPage)pageDeserializer.Deserialize(pageReader);

Example XML Doucment that needs to be deserialized:

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  1  <?xml version="1.0" encoding="UTF-8" standalone="yes"?><svg width="768" height="768"><image x="0" y="0" width="768" height="768" xlink:href="images/mask.png"/></svg>

Posted 12-Jul-11 12:06pm

amura.cxg

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Christoph Keller · Accepted Answer · 2011-07-16T08:27:00

Hi,

You could get this working using a XmlReader and setting the used namespaces in a XmlParserContext / XmlNamespaceManager.

Here is the example code I used to test:

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  1  string xml = @"<?xml version=""1.0"" encoding=""UTF-8"" standalone=""yes""?>
  2  		<svg width=""768"" height=""768"">
  3  		<image x=""0"" y=""0"" width=""768"" height=""768"" xlink:href=""images/mask.png""/>
  4  				</svg>";
  5  
  6  XmlSerializer pageDeserializer = new XmlSerializer(typeof(svg));
  7  			
  8  using (TextReader txReader = new StringReader(xml))
  9  {
 10  	// Create XmlReaderSettings
 11  	XmlReaderSettings settings = new XmlReaderSettings();
 12  	settings.ConformanceLevel = ConformanceLevel.Fragment;
 13  	settings.IgnoreWhitespace = true;
 14  	settings.IgnoreComments = true;
 15  
 16  	// Create a new NameTable
 17  	NameTable nt = new NameTable();
 18  
 19  	// Create a new NamespaceManager
 20  	XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
 21  
 22  	// Add your namespaces used in the XML
 23  	nsmgr.AddNamespace("xlink", "urn:http://namespaceurl.com");
 24  
 25  	// Create the XmlParserContext using the previous declared XmlNamespaceManager
 26  	XmlParserContext ctx = new XmlParserContext(null, nsmgr, null, XmlSpace.None);
 27  
 28  	// Instantiate a new XmlReader, using the previous declared XmlReaderSettings and XmlParserContext
 29  	XmlReader reader = XmlReader.Create(txReader, settings, ctx);
 30  
 31  	// Finally, deserialize
 32  	svg deserialize = (svg) pageDeserializer.Deserialize(reader);
 33  }

Hope this helps.

Best regards and happy coding,
Stops

XML Deserialization - Missing Namespace

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XML Deserialization - Missing Namespace

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