XmlSchemaAny Class

Represents the World Wide Web Consortium (W3C) any element.

Namespace: System.Xml.Schema
Assembly: System.Xml (in system.xml.dll)

public class XmlSchemaAny : XmlSchemaParticle
public class XmlSchemaAny extends XmlSchemaParticle
public class XmlSchemaAny extends XmlSchemaParticle
Not applicable.

The any element enables any element from the specified namespace or namespaces to appear in the containing complexType element.

The following example creates the any element.

using System;
using System.Xml;
using System.Xml.Schema;

class XMLSchemaExamples
    public static void Main()

        XmlSchema schema = new XmlSchema();

        // <element name='htmlText'>
        XmlSchemaElement xeHtmlText = new XmlSchemaElement();
        xeHtmlText.Name = "htmlText";

        // <complexType>
        XmlSchemaComplexType ct = new XmlSchemaComplexType();

        // <sequence>
        XmlSchemaSequence sequence = new XmlSchemaSequence();

        // <any namespace='http://www.w3.org/1999/xhtml'
        //    minOccurs='1' maxOccurs='unbounded'
        //    processContents='lax'/>
        XmlSchemaAny any = new XmlSchemaAny();
        any.MinOccurs = 1;
        any.MaxOccursString = "unbounded";
        any.Namespace = "http://www.w3.org/1999/xhtml";
        any.ProcessContents = XmlSchemaContentProcessing.Lax;

        ct.Particle = sequence;
        xeHtmlText.SchemaType = ct;


        XmlSchemaSet schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne);

        XmlSchema compiledSchema = null;

        foreach (XmlSchema schema1 in schemaSet.Schemas())
            compiledSchema = schema1;

        XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        schema.Write(Console.Out, nsmgr);

    public static void ValidationCallbackOne(object sender, ValidationEventArgs args)

The following XML file is generated for the preceding code example.

<?xml version="1.0" encoding="IBM437"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:element name='htmlText'>
         <xs:any namespace='http://www.w3.org/1999/xhtml'
              minOccurs='1' maxOccurs='unbounded'

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

XNA Framework

Supported in: 1.0