XmlTextWriter.WriteProcessingInstruction メソッド

[アーティクル]
03/28/2008

<?name text?> のように、name と text の間に空白を入れた処理命令を書き込みます。

Overrides Public Sub WriteProcessingInstruction( _
   ByVal name As String, _   ByVal text As String _)
[C#]
public override void WriteProcessingInstruction(stringname,stringtext);
[C++]
public: void WriteProcessingInstruction(String* name,String* text);
[JScript]
public override function WriteProcessingInstruction(
   name : String,text : String);

パラメータ

name
処理命令の名前。
text
処理命令に含めるテキスト。

例外

例外の種類	条件
ArgumentException	テキストが非整形式の XML ドキュメントになります。 name が null 参照 (Visual Basic では Nothing) または String.Empty です。このメソッドは、 WriteStartDocument が呼び出された後に XML 宣言を作成するために使用されています。

ArgumentException

テキストが非整形式の XML ドキュメントになります。

name が null 参照 (Visual Basic では Nothing) または String.Empty です。

このメソッドは、 WriteStartDocument が呼び出された後に XML 宣言を作成するために使用されています。

解説

text が null 参照 (Visual Basic では Nothing) または String.Empty の場合、このメソッドは、<?name?> などのデータの内容を含まない ProcessingInstruction を書き込みます。

使用例

[Visual Basic, C#, C++] book を表す XML ファイルを書き込む例を次に示します。

 
Option Explicit
Option Strict

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample
    Private Shared filename As String = "sampledata.xml"
    Public Shared Sub Main()
        Dim writer As XmlTextWriter = Nothing
        
        writer = New XmlTextWriter(filename, Nothing)
        'Use indenting for readability.
        writer.Formatting = Formatting.Indented
        
        'Write the XML delcaration. 
        writer.WriteStartDocument()
        
        'Write the ProcessingInstruction 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 a 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()
        
        'Load the file into an XmlDocument to ensure well formed XML.
        Dim doc As New XmlDocument()
        'Preserve white space for readability.
        doc.PreserveWhitespace = True
        'Load the file.
        doc.Load(filename)
        
        'Display the XML content to the console.
        Console.Write(doc.InnerXml)
    End Sub 'Main 
End Class 'Sample

[C#] 
using System;
using System.IO;
using System.Xml;

public class Sample
{
  private const string filename = "sampledata.xml";

  public static void Main()
  {
     XmlTextWriter writer = null;

     writer = new XmlTextWriter (filename, null);
     //Use indenting for readability.
     writer.Formatting = Formatting.Indented;

     //Write the XML delcaration. 
     writer.WriteStartDocument();

     //Write the ProcessingInstruction 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 a 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();  

     //Load the file into an XmlDocument to ensure well formed XML.
     XmlDocument doc = new XmlDocument();
     //Preserve white space for readability.
     doc.PreserveWhitespace = true;
     //Load the file.
     doc.Load(filename);  
    
     //Display the XML content to the console.
     Console.Write(doc.InnerXml);  

  }

}

[C++] 
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::IO;
using namespace System::Xml;

int main()
{
     XmlTextWriter* writer = 0;
     String* filename = S"sampledata.xml";

     writer = new XmlTextWriter (filename, 0);
     //Use indenting for readability.
     writer->Formatting = Formatting::Indented;

     //Write the XML delcaration. 
     writer->WriteStartDocument();

     //Write the ProcessingInstruction node.
     String* PItext=S"type='text/xsl' href='book.xsl'";
     writer->WriteProcessingInstruction(S"xml-stylesheet", PItext);

     //Write the DocumentType node.
     writer->WriteDocType(S"book", 0 , 0, S"<!ENTITY h 'hardcover'>");
        
     //Write a Comment node.
     writer->WriteComment(S"sample XML");
    
     //Write a root element.
     writer->WriteStartElement(S"book");

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

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

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

     //Write CDATA.
     writer->WriteCData(S"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();  

     //Load the file into an XmlDocument to ensure well formed XML.
     XmlDocument* doc = new XmlDocument();
     //Preserve white space for readability.
     doc->PreserveWhitespace = true;
     //Load the file.
     doc->Load(filename);  
    
     //Display the XML content to the console.
     Console::Write(doc->InnerXml);  
}

[JScript] JScript のサンプルはありません。Visual Basic、C#、および C++ のサンプルを表示するには、このページの左上隅にある言語のフィルタボタンをクリックします。

必要条件

プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard

参照

XmlTextWriter クラス | XmlTextWriter メンバ | System.Xml 名前空間

次の方法で共有

XmlTextWriter.WriteProcessingInstruction メソッド

パラメータ

例外

解説

使用例

必要条件

参照

その他のリソース