XmlSchemaComplexContentRestriction-Klasse

Stellt das restriction-Element aus XML Schema dar, wie vom World Wide Web Consortium (W3C) festgelegt. Diese Klasse ist für komplexe Typen mit einem Modell für komplexen Inhalt vorgesehen, die durch Einschränkung abgeleitet werden. Sie schränkt die Inhalte des komplexen Typs auf eine Teilmenge des vererbten komplexen Typs ein.

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

Syntax

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

public class XmlSchemaComplexContentRestriction : XmlSchemaContent

public ref class XmlSchemaComplexContentRestriction : public XmlSchemaContent

public class XmlSchemaComplexContentRestriction extends XmlSchemaContent

public class XmlSchemaComplexContentRestriction extends XmlSchemaContent

Beispiel

Im folgenden Beispiel wird ein durch Einschränkung erweitertes complexContent-Element erstellt.

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

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

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

        // <xs:complexType name="phoneNumber">
        XmlSchemaComplexType phoneNumber = new XmlSchemaComplexType();
        phoneNumber.Name = "phoneNumber";

        // <xs:sequence>
        XmlSchemaSequence phoneNumberSequence = new XmlSchemaSequence();

        // <xs:element name="areaCode"/>
        XmlSchemaElement areaCode1 = new XmlSchemaElement();
        areaCode1.MinOccurs = 0;
        areaCode1.MaxOccursString = "1";
        areaCode1.Name = "areaCode";
        phoneNumberSequence.Items.Add(areaCode1);

        // <xs:element name="prefix"/>
        XmlSchemaElement prefix1 = new XmlSchemaElement();
        prefix1.MinOccurs = 1;
        prefix1.MaxOccursString = "1";
        prefix1.Name = "prefix";
        phoneNumberSequence.Items.Add(prefix1);

        // <xs:element name="number"/>
        XmlSchemaElement number1 = 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">
        XmlSchemaComplexType localPhoneNumber = new XmlSchemaComplexType();
        localPhoneNumber.Name = "localPhoneNumber";

        // <xs:complexContent>
        XmlSchemaComplexContent complexContent = new XmlSchemaComplexContent();

        // <xs:restriction base="phoneNumber">
        XmlSchemaComplexContentRestriction restriction = new XmlSchemaComplexContentRestriction();
        restriction.BaseTypeName = new XmlQualifiedName("phoneNumber", "");

        // <xs:sequence>
        XmlSchemaSequence sequence2 = new XmlSchemaSequence();

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

        // <xs:element name="prefix"/>
        XmlSchemaElement prefix2 = new XmlSchemaElement();
        prefix2.MinOccurs = 1;
        prefix2.MaxOccursString = "1";
        prefix2.Name = "prefix";
        sequence2.Items.Add(prefix2);

        // <xs:element name="number"/>
        XmlSchemaElement number2 = 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);

        XmlSchemaSet schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne);
        schemaSet.Add(schema);
        schemaSet.Compile();

        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");
        compiledSchema.Write(Console.Out, nsmgr);
    }

    public static void ValidationCallbackOne(object sender, ValidationEventArgs args)
    {
        Console.WriteLine(args.Message);
    }
}

Für das vorhergehende Codebeispiel wird die folgende XML-Datei generiert.

<?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>

Vererbungshierarchie

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

Threadsicherheit

Alle öffentlichen statischen (Shared in Visual Basic) Member dieses Typs sind threadsicher. Bei Instanzmembern ist die Threadsicherheit nicht gewährleistet.

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

.NET Compact Framework

Unterstützt in: 2.0

Siehe auch

Referenz

XmlSchemaComplexContentRestriction-Member
System.Xml.Schema-Namespace