XmlWriter.WriteDocType(String, String, String, String) XmlWriter.WriteDocType(String, String, String, String) XmlWriter.WriteDocType(String, String, String, String) XmlWriter.WriteDocType(String, String, String, String) Method

定義

派生クラスでオーバーライドされると、指定した名前とオプションの属性を含む DOCTYPE 宣言を書き込みます。When overridden in a derived class, writes the DOCTYPE declaration with the specified name and optional attributes.

public:
 abstract void WriteDocType(System::String ^ name, System::String ^ pubid, System::String ^ sysid, System::String ^ subset);
public abstract void WriteDocType (string name, string pubid, string sysid, string subset);
abstract member WriteDocType : string * string * string * string -> unit
Public MustOverride Sub WriteDocType (name As String, pubid As String, sysid As String, subset As String)

パラメーター

name
String String String String

DOCTYPE の名前。The name of the DOCTYPE. これを空にすることはできません。This must be non-empty.

pubid
String String String String

null でない場合は、PUBLIC "pubid" "sysid" も書き込みます。pubidsysid は、指定した引数の値に置き換えられます。If non-null it also writes PUBLIC "pubid" "sysid" where pubid and sysid are replaced with the value of the given arguments.

sysid
String String String String

pubidnullsysid が null でない場合は、SYSTEM "sysid" を書き込みます。sysid は、この引数の値に置き換えられます。If pubid is null and sysid is non-null it writes SYSTEM "sysid" where sysid is replaced with the value of this argument.

subset
String String String String

null でない場合は、[subset] を書き込みます。subset は、この引数の値に置き換えられます。If non-null it writes [subset] where subset is replaced with the value of this argument.

例外

このメソッドが、プロローグの外 (ルート要素の後) で呼び出されました。This method was called outside the prolog (after the root element).

または-or-

先行の非同期操作が完了する前に、XmlWriter メソッドが呼び出されました。An XmlWriter method was called before a previous asynchronous operation finished. この場合、「非同期操作が既に実行されています」というメッセージと共に InvalidOperationException がスローされます。In this case, InvalidOperationException is thrown with the message "An asynchronous operation is already in progress."

name の値が、無効な XML になることがあります。The value for name would result in invalid XML.

次の例では、本を表す XML ファイルを書き込みます。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

注釈

このメソッドに無効な文字をチェックしませんpubidsysidまたはsubsetします。This method does not check for invalid characters in pubid, sysid or subset. または確認しません内部サブセットが正しく構成されていること。It also does not check that the internal subset is well-formed.

重要

XmlWriterに渡されるデータを検証しません、WriteDocTypeメソッド。The XmlWriter does not validate the data that is passed to the WriteDocType method. このメソッドに、任意のデータを渡さないでください。You should not pass arbitrary data to this method.

このメソッドの非同期バージョンを参照してください。WriteDocTypeAsyncします。For the asynchronous version of this method, see WriteDocTypeAsync.

適用対象