XmlTextWriter.WriteStartDocument メソッド
バージョン "1.0" で XML 宣言を書き込みます。
オーバーロードの一覧
バージョン "1.0" で XML 宣言を書き込みます。
.NET Compact Framework でもサポート。
[Visual Basic] Overloads Overrides Public Sub WriteStartDocument()
バージョン "1.0" とスタントアロン属性を使用して XML 宣言を書き込みます。
.NET Compact Framework でもサポート。
[Visual Basic] Overloads Overrides Public Sub WriteStartDocument(Boolean)
[JScript] public override function WriteStartDocument(Boolean);
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。
[Visual Basic, C#, C++] メモ ここでは、WriteStartDocument のオーバーロード形式のうちの 1 つだけについて、使用例を示します。その他の例については、各オーバーロード形式のトピックを参照してください。
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);
}
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