This documentation is archived and is not being maintained.

XmlSchemaComplexContentRestriction Class

Represents the restriction element from XML Schema as specified by the World Wide Web Consortium (W3C). This class is for complex types with a complex content model derived by restriction. It restricts the contents of the complex type to a subset of the inherited complex type.

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

'Declaration
Public Class XmlSchemaComplexContentRestriction _
	Inherits XmlSchemaContent
'Usage
Dim instance As XmlSchemaComplexContentRestriction

The following example creates a complexContent element extended by restriction.

Option Explicit On
Option Strict On

Imports System
Imports System.Xml
Imports System.Xml.Schema

Class XMLSchemaExamples

    Public Shared Sub Main()

        Dim schema As New XmlSchema()

        ' <xs:complexType name="phoneNumber"> 
        Dim phoneNumber As New XmlSchemaComplexType()
        phoneNumber.Name = "phoneNumber" 

        ' <xs:sequence> 
        Dim phoneNumberSequence As New XmlSchemaSequence()

        ' <xs:element name="areaCode"/> 
        Dim areaCode1 As New XmlSchemaElement()
        areaCode1.MinOccurs = 0
        areaCode1.MaxOccursString = "1"
        areaCode1.Name = "areaCode"
        phoneNumberSequence.Items.Add(areaCode1)

        ' <xs:element name="prefix"/> 
        Dim prefix1 As New XmlSchemaElement()
        prefix1.MinOccurs = 1
        prefix1.MaxOccursString = "1"
        prefix1.Name = "prefix"
        phoneNumberSequence.Items.Add(prefix1)

        ' <xs:element name="number"/> 
        Dim number1 As New XmlSchemaElement()
        number1.MinOccurs = 1
        number1.MaxOccursString = "1"
        number1.Name = "number"
        phoneNumberSequence.Items.Add(number1)

        phoneNumber.Particle = phoneNumberSequence

        schema.Items.Add(phoneNumber)

        ' <xs:complexType name="localPhoneNumber"> 
        Dim localPhoneNumber As New XmlSchemaComplexType()
        localPhoneNumber.Name = "localPhoneNumber" 

        ' <xs:complexContent> 
        Dim complexContent As New XmlSchemaComplexContent()

        ' <xs:restriction base="phoneNumber"> 
        Dim restriction As New XmlSchemaComplexContentRestriction()
        restriction.BaseTypeName = New XmlQualifiedName("phoneNumber", "")

        ' <xs:sequence> 
        Dim sequence2 As New XmlSchemaSequence()

        ' <xs:element name="areaCode" minOccurs="0"/> 
        Dim areaCode2 As New XmlSchemaElement()
        areaCode2.MinOccurs = 0
        areaCode2.MaxOccursString = "1"
        areaCode2.Name = "areaCode"
        sequence2.Items.Add(areaCode2)

        ' <xs:element name="prefix"/> 
        Dim prefix2 As New XmlSchemaElement()
        prefix2.MinOccurs = 1
        prefix2.MaxOccursString = "1"
        prefix2.Name = "prefix"
        sequence2.Items.Add(prefix2)

        ' <xs:element name="number"/> 
        Dim number2 As New XmlSchemaElement()
        number2.MinOccurs = 1
        number2.MaxOccursString = "1"
        number2.Name = "number"
        sequence2.Items.Add(number2)

        restriction.Particle = sequence2
        complexContent.Content = restriction
        localPhoneNumber.ContentModel = complexContent

        schema.Items.Add(localPhoneNumber)

        Dim schemaSet As New XmlSchemaSet()
        AddHandler schemaSet.ValidationEventHandler, AddressOf ValidationCallbackOne

        schemaSet.Add(schema)
        schemaSet.Compile()

        Dim compiledSchema As XmlSchema = Nothing 

        For Each schema1 As XmlSchema In schemaSet.Schemas()
            compiledSchema = schema1
        Next 

        Dim nsmgr As New XmlNamespaceManager(New NameTable())
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema")
        compiledSchema.Write(Console.Out, nsmgr)
    End Sub 'Main

    Public Shared Sub ValidationCallbackOne(ByVal sender As Object, ByVal args As ValidationEventArgs)

        Console.WriteLine(args.Message)
    End Sub 'ValidationCallbackOne
End Class 'XMLSchemaExamples

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:complexType name="phoneNumber">
        <xs:sequence>
            <xs:element name="areaCode" minOccurs="0" maxOccurs="1"/>
            <xs:element name="prefix" minOccurs="1" maxOccurs="1"/>
            <xs:element name="number" minOccurs="1" maxOccurs="1"/>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="localPhoneNumber">
        <xs:complexContent mixed="false">
            <xs:restriction base="phoneNumber">
                <xs:sequence>
                    <xs:element name="areaCode" minOccurs="0" maxOccurs="1"/>
                    <xs:element name="prefix" minOccurs="1" maxOccurs="1"/>
                    <xs:element name="number" minOccurs="1" maxOccurs="1"/>
                </xs:sequence>
            </xs:restriction>
        </xs:complexContent>
    </xs:complexType>

</xs:schema>

System.Object
  System.Xml.Schema.XmlSchemaObject
    System.Xml.Schema.XmlSchemaAnnotated
      System.Xml.Schema.XmlSchemaContent
        System.Xml.Schema.XmlSchemaComplexContentRestriction

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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
Show: