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XmlAnyAttributeAttribute Constructor

Constructs a new instance of the XmlAnyAttributeAttribute class.

Namespace:  System.Xml.Serialization
Assembly:  System.Xml (in System.Xml.dll)

public XmlAnyAttributeAttribute()

The following example constructs an XmlAnyAttributeAttribute that is used to override the deserialization of an object. To try the example, create a file named UnknownAttributes.xml that contains the following XML:

 <?xml version="1.0" encoding="utf-8"?>
 <Group xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" GroupType = 'Technical' GroupNumber = '42' GroupBase = 'Red'>
using System;
using System.IO;
using System.Xml.Serialization;
using System.Xml;

public class Group{
   public string GroupName;
   // The Things array will be used to collect all unknown 
   // attributes found when deserializing. 
   public XmlAttribute[]Things;

public class Test{
   static void Main(){
      Test t = new Test();

   private void DeserializeObject(string filename){
      // Use the CreateOverrideSerializer to return an instance 
      // of the XmlSerializer customized for overrides.
      XmlSerializer ser = CreateOverrideSerializer();
      // A FileStream is needed to read the XML document.
      FileStream fs = new FileStream(filename, FileMode.Open);
     Group g = (Group)
     foreach(XmlAttribute xAtt in g.Things){
        Console.WriteLine(xAtt.Name + ": " + xAtt.InnerXml);

   private XmlSerializer CreateOverrideSerializer(){
      // Override the Things field to capture all 
      // unknown XML attributes.
      XmlAnyAttributeAttribute myAnyAttribute = 
      new XmlAnyAttributeAttribute();
      XmlAttributeOverrides xOverride = 
      new XmlAttributeOverrides();
      XmlAttributes xAtts = new XmlAttributes();
      xOverride.Add(typeof(Group), "Things", xAtts);

      return new XmlSerializer(typeof(Group) , xOverride);

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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