XmlSchemaEnumerationFacet Classe

Definição

public ref class XmlSchemaEnumerationFacet : System::Xml::Schema::XmlSchemaFacet

public class XmlSchemaEnumerationFacet : System.Xml.Schema.XmlSchemaFacet

type XmlSchemaEnumerationFacet = class
    inherit XmlSchemaFacet

Public Class XmlSchemaEnumerationFacet
Inherits XmlSchemaFacet

Herança

Object

XmlSchemaObject

XmlSchemaAnnotated

XmlSchemaFacet

XmlSchemaEnumerationFacet

Exemplos

O exemplo seguinte mostra a utilização da XmlSchemaEnumerationFacet classe.

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

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

        // <xs:simpleType name="SizeType">
        XmlSchemaSimpleType SizeType = new XmlSchemaSimpleType();
        SizeType.Name = "SizeType";

        // <xs:restriction base="xs:string">
        XmlSchemaSimpleTypeRestriction restriction = new XmlSchemaSimpleTypeRestriction();
        restriction.BaseTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");

        // <xs:enumeration value="Small"/>
        XmlSchemaEnumerationFacet enumerationSmall = new XmlSchemaEnumerationFacet();
        enumerationSmall.Value = "Small";
        restriction.Facets.Add(enumerationSmall);

        // <xs:enumeration value="Medium"/>
        XmlSchemaEnumerationFacet enumerationMedium = new XmlSchemaEnumerationFacet();
        enumerationMedium.Value = "Medium";
        restriction.Facets.Add(enumerationMedium);

        // <xs:enumeration value="Large"/>
        XmlSchemaEnumerationFacet enumerationLarge = new XmlSchemaEnumerationFacet();
        enumerationLarge.Value = "Large";
        restriction.Facets.Add(enumerationLarge);

        SizeType.Content = restriction;

        schema.Items.Add(SizeType);

        // <xs:element name="Item">
        XmlSchemaElement elementItem = new XmlSchemaElement();
        elementItem.Name = "Item";

        // <xs:complexType>
        XmlSchemaComplexType complexType = new XmlSchemaComplexType();

        // <xs:attribute name="Size" type="SizeType"/>
        XmlSchemaAttribute attributeSize = new XmlSchemaAttribute();
        attributeSize.Name = "Size";
        attributeSize.SchemaTypeName = new XmlQualifiedName("SizeType", "");
        complexType.Attributes.Add(attributeSize);

        elementItem.SchemaType = complexType;

        schema.Items.Add(elementItem);

        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);
    }
}

Option Strict On
Option Explicit On

Imports System.Xml
Imports System.Xml.Schema

Class XMLSchemaExamples

    Public Shared Sub Main()

        Dim schema As New XmlSchema()

        ' <xs:simpleType name="SizeType">
        Dim SizeType As New XmlSchemaSimpleType()
        SizeType.Name = "SizeType"

        ' <xs:restriction base="xs:string">
        Dim restriction As New XmlSchemaSimpleTypeRestriction()
        restriction.BaseTypeName = New XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema")

        ' <xs:enumeration value="Small"/>
        Dim enumerationSmall As New XmlSchemaEnumerationFacet()
        enumerationSmall.Value = "Small"
        restriction.Facets.Add(enumerationSmall)

        ' <xs:enumeration value="Medium"/>
        Dim enumerationMedium As New XmlSchemaEnumerationFacet()
        enumerationMedium.Value = "Medium"
        restriction.Facets.Add(enumerationMedium)

        ' <xs:enumeration value="Large"/>
        Dim enumerationLarge As New XmlSchemaEnumerationFacet()
        enumerationLarge.Value = "Large"
        restriction.Facets.Add(enumerationLarge)

        SizeType.Content = restriction

        schema.Items.Add(SizeType)

        ' <xs:element name="Item">
        Dim elementItem As New XmlSchemaElement()
        elementItem.Name = "Item"

        ' <xs:complexType>
        Dim complexType As New XmlSchemaComplexType()

        ' <xs:attribute name="Size" type="SizeType"/>
        Dim attributeSize As New XmlSchemaAttribute()
        attributeSize.Name = "Size"
        attributeSize.SchemaTypeName = New XmlQualifiedName("SizeType", "")
        complexType.Attributes.Add(attributeSize)

        elementItem.SchemaType = complexType

        schema.Items.Add(elementItem)

        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


    Public Shared Sub ValidationCallbackOne(ByVal sender As Object, ByVal args As ValidationEventArgs)
        Console.WriteLine(args.Message)
    End Sub
End Class

O seguinte ficheiro XML é gerado para o exemplo de código anterior.

<?xml version="1.0" encoding="IBM437"?>
<xs:schema  xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:simpleType name="SizeType">
    <xs:restriction base="xs:string">
      <xs:enumeration value="Small" />
      <xs:enumeration value="Medium" />
      <xs:enumeration value="Large" />
    </xs:restriction>
  </xs:simpleType>
  <xs:element name="Item">
    <xs:complexType>
      <xs:attribute name="Size" type="SizeType" />
    </xs:complexType>
  </xs:element>
</xs:schema>