XmlWriter.WriteEntityRef(String) XmlWriter.WriteEntityRef(String) XmlWriter.WriteEntityRef(String) XmlWriter.WriteEntityRef(String) Method

Definition

Schreibt beim Überschreiben in einer abgeleiteten Klasse einen Entitätsverweis als &name;. When overridden in a derived class, writes out an entity reference as &name;.

public:
 abstract void WriteEntityRef(System::String ^ name);
public abstract void WriteEntityRef (string name);
abstract member WriteEntityRef : string -> unit
Public MustOverride Sub WriteEntityRef (name As String)

Parameter

name
String String String String

Der Name des Entitätsverweises. The name of the entity reference.

Ausnahmen

name ist entweder null oder String.Empty. name is either null or String.Empty.

Eine XmlWriter-Methode wurde aufgerufen, bevor ein vorheriger asynchroner Vorgang abgeschlossen wurde. An XmlWriter method was called before a previous asynchronous operation finished. In diesem Fall wird InvalidOperationException mit der Meldung „Es wird bereits ein asynchroner Vorgang ausgeführt“ ausgelöst. In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."

Beispiele

Im folgende Beispiel schreibt eine XML-Datei, die ein Buch darstellt.The following example writes an XML file representing a book.

using System;
using System.IO;
using System.Xml;

public class Sample {

  private const string filename = "sampledata.xml";

  public static void Main() {
  
     XmlWriterSettings settings = new XmlWriterSettings();
     settings.Indent = true;
     XmlWriter writer = XmlWriter.Create(filename, settings);

     // Write the Processing Instruction node.
     String PItext="type=\"text/xsl\" href=\"book.xsl\"";
     writer.WriteProcessingInstruction("xml-stylesheet", PItext);

     // Write the DocumentType node.
     writer.WriteDocType("book", null , null, "<!ENTITY h \"hardcover\">");
        
     // Write a Comment node.
     writer.WriteComment("sample XML");
    
     // Write the root element.
     writer.WriteStartElement("book");

     // Write the genre attribute.
     writer.WriteAttributeString("genre", "novel");
    
     // Write the ISBN attribute.
     writer.WriteAttributeString("ISBN", "1-8630-014");

     // Write the title.
     writer.WriteElementString("title", "The Handmaid's Tale");
              
     // Write the style element.
     writer.WriteStartElement("style");
     writer.WriteEntityRef("h");
     writer.WriteEndElement(); 

     // Write the price.
     writer.WriteElementString("price", "19.95");

     // Write CDATA.
     writer.WriteCData("Prices 15% off!!");

     // Write the close tag for the root element.
     writer.WriteEndElement();
             
     writer.WriteEndDocument();

     // Write the XML to file and close the writer.
     writer.Flush();
     writer.Close();  
  }

}
Option Strict
Option Explicit

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample
    Private Const filename As String = "sampledata.xml"
    
  Public Shared Sub Main()

     Dim settings As XmlWriterSettings = new XmlWriterSettings()
     settings.Indent = true
     Dim writer As XmlWriter = XmlWriter.Create(filename, settings)
        
     ' Write the Processing Instruction node.
     Dim PItext As String = "type=""text/xsl"" href=""book.xsl"""
     writer.WriteProcessingInstruction("xml-stylesheet", PItext)
        
     'Write the DocumentType node.
     writer.WriteDocType("book", Nothing, Nothing, "<!ENTITY h ""hardcover"">")
        
     ' Write a Comment node.
     writer.WriteComment("sample XML")
        
     ' Write the root element.
     writer.WriteStartElement("book")
        
     ' Write the genre attribute
     writer.WriteAttributeString("genre", "novel")
        
     ' Write the ISBN attribute.
     writer.WriteAttributeString("ISBN", "1-8630-014")
        
     ' Write the title.
     writer.WriteElementString("title", "The Handmaid's Tale")
        
     ' Write the style element.
     writer.WriteStartElement("style")
     writer.WriteEntityRef("h")
     writer.WriteEndElement()
       
     ' Write the price.
     writer.WriteElementString("price", "19.95")
        
     ' Write CDATA.
     writer.WriteCData("Prices 15% off!!")
        
     ' Write the close tag for the root element.
     writer.WriteEndElement()
        
     writer.WriteEndDocument()
        
     ' Write the XML to file and close the writer
     writer.Flush()
     writer.Close()
        
    End Sub 'Main 
End Class 'Sample

Hinweise

Die asynchrone Version dieser Methode finden Sie unter WriteEntityRefAsync.For the asynchronous version of this method, see WriteEntityRefAsync.

Gilt für: