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XmlSchemaLengthFacet Classe

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Definição

Namespace:
System.Xml.Schema
Assembly:
System.Xml.ReaderWriter.dll
Assembly:
System.Xml.dll
Assembly:
netstandard.dll

Representa a faceta length do Esquema XML, conforme especificado pelo W3C (World Wide Web Consortium). Essa classe pode ser usada para especificar uma restrição de comprimento de um elemento simpleType no tipo de dados.

public ref class XmlSchemaLengthFacet : System::Xml::Schema::XmlSchemaNumericFacet
public class XmlSchemaLengthFacet : System.Xml.Schema.XmlSchemaNumericFacet
type XmlSchemaLengthFacet = class
    inherit XmlSchemaNumericFacet
Public Class XmlSchemaLengthFacet
Inherits XmlSchemaNumericFacet
Herança
Object
XmlSchemaObject
XmlSchemaAnnotated
XmlSchemaFacet
XmlSchemaNumericFacet
XmlSchemaLengthFacet

Exemplos

O exemplo a seguir mostra o uso da XmlSchemaLengthFacet classe.

#using <System.Xml.dll>

using namespace System;
using namespace System::Xml;
using namespace System::Xml::Schema;

ref class XMLSchemaExamples
{
private:
    static void ValidationCallbackOne(Object^ sender, ValidationEventArgs^ args)
    {
        Console::WriteLine(args->Message);
    }

public:
    static void Main()
    {
        XmlSchema^ schema = gcnew XmlSchema();

        // <xs:simpleType name="ZipCodeType">
        XmlSchemaSimpleType^ ZipCodeType = gcnew XmlSchemaSimpleType();
        ZipCodeType->Name = "ZipCodeType";

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

        // <xs:length value="5"/>
        XmlSchemaLengthFacet^ length = gcnew XmlSchemaLengthFacet();
        length->Value = "5";
        restriction->Facets->Add(length);

        ZipCodeType->Content = restriction;

        schema->Items->Add(ZipCodeType);

        // <xs:element name="Address">
        XmlSchemaElement^ element = gcnew XmlSchemaElement();
        element->Name = "Address";

        // <xs:complexType>
        XmlSchemaComplexType^ complexType = gcnew XmlSchemaComplexType();

        // <xs:attribute name="ZipCode" type="ZipCodeType"/>
        XmlSchemaAttribute^ ZipCodeAttribute = gcnew XmlSchemaAttribute();
        ZipCodeAttribute->Name = "ZipCode";
        ZipCodeAttribute->SchemaTypeName = gcnew XmlQualifiedName("ZipCodeType", "");
        complexType->Attributes->Add(ZipCodeAttribute);

        element->SchemaType = complexType;
        schema->Items->Add(element);

        XmlSchemaSet^ schemaSet = gcnew XmlSchemaSet();
        schemaSet->ValidationEventHandler += gcnew ValidationEventHandler(ValidationCallbackOne);
        schemaSet->Add(schema);
        schemaSet->Compile();

        XmlSchema^ compiledSchema = nullptr;

        for each (XmlSchema^ schema1 in schemaSet->Schemas())
        {
            compiledSchema = schema1;
        }

        XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager(gcnew NameTable());
        nsmgr->AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        compiledSchema->Write(Console::Out, nsmgr);
    }
};

int main()
{
    XMLSchemaExamples::Main();
    return 0;
}

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

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

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

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

        // <xs:length value="5"/>
        XmlSchemaLengthFacet length = new XmlSchemaLengthFacet();
        length.Value = "5";
        restriction.Facets.Add(length);

        ZipCodeType.Content = restriction;

        schema.Items.Add(ZipCodeType);

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

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

        // <xs:attribute name="ZipCode" type="ZipCodeType"/>
        XmlSchemaAttribute ZipCodeAttribute = new XmlSchemaAttribute();
        ZipCodeAttribute.Name = "ZipCode";
        ZipCodeAttribute.SchemaTypeName = new XmlQualifiedName("ZipCodeType", "");
        complexType.Attributes.Add(ZipCodeAttribute);

        element.SchemaType = complexType;
        schema.Items.Add(element);

        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);
    }
}

Imports System.Xml
Imports System.Xml.Schema

Class XMLSchemaExamples
    Public Shared Sub Main()

        Dim schema As New XmlSchema()

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

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

        ' <xs:length value="5"/>
        Dim length As New XmlSchemaLengthFacet()
        length.Value = "5"
        restriction.Facets.Add(length)

        ZipCodeType.Content = restriction

        schema.Items.Add(ZipCodeType)

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

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

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

        element.SchemaType = complexType
        schema.Items.Add(element)

        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 arquivo XML a seguir 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="ZipCodeType">
        <xs:restriction base="xs:string">
            <xs:length value="5"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:element name="Address">
        <xs:complexType>
            <xs:attribute name="ZipCode" type="ZipCodeType"/>
        </xs:complexType>
    </xs:element>

</xs:schema>

Construtores

XmlSchemaLengthFacet()

Inicializa uma nova instância da classe XmlSchemaLengthFacet.

Propriedades

Annotation

Obtém ou define a propriedade annotation.

(Herdado de XmlSchemaAnnotated)
Id

Obtém ou define a ID de cadeia de caracteres.

(Herdado de XmlSchemaAnnotated)
IsFixed

Obtém ou define as informações que indicam que esta faceta é fixa.

(Herdado de XmlSchemaFacet)
LineNumber

Obtém ou define o número de linha no arquivo ao qual o elemento schema se refere.

(Herdado de XmlSchemaObject)
LinePosition

Obtém ou define a posição da linha no arquivo ao qual o elemento schema se refere.

(Herdado de XmlSchemaObject)
Namespaces

Obtém ou define o XmlSerializerNamespaces a ser usado com esse objeto de esquema.

(Herdado de XmlSchemaObject)
Parent

Obtém ou define o pai deste XmlSchemaObject.

(Herdado de XmlSchemaObject)
SourceUri

Obtém ou define o local de origem para o arquivo que carregou o esquema.

(Herdado de XmlSchemaObject)
UnhandledAttributes

Obtém ou define os atributos qualificados que não pertencem ao namespace de destino do esquema atual.

(Herdado de XmlSchemaAnnotated)
Value

Obtém ou define o atributo value da faceta.

(Herdado de XmlSchemaFacet)

Métodos

Equals(Object)

Determina se o objeto especificado é igual ao objeto atual.

(Herdado de Object)
GetHashCode()

Serve como a função de hash padrão.

(Herdado de Object)
GetType()

Obtém o Type da instância atual.

(Herdado de Object)
MemberwiseClone()

Cria uma cópia superficial do Object atual.

(Herdado de Object)
ToString()

Retorna uma cadeia de caracteres que representa o objeto atual.

(Herdado de Object)

Aplica-se a