XmlWriter.WriteElementString XmlWriter.WriteElementString XmlWriter.WriteElementString XmlWriter.WriteElementString Method

定義

文字列値を含む要素を書き込みます。Writes an element containing a string value.

オーバーロード

WriteElementString(String, String) WriteElementString(String, String) WriteElementString(String, String) WriteElementString(String, String)

指定されたローカル名および値を使用して要素を書き込みます。Writes an element with the specified local name and value.

WriteElementString(String, String, String) WriteElementString(String, String, String) WriteElementString(String, String, String) WriteElementString(String, String, String)

指定されたローカル名、名前空間 URI、および値を使用して要素を書き込みます。Writes an element with the specified local name, namespace URI, and value.

WriteElementString(String, String, String, String) WriteElementString(String, String, String, String) WriteElementString(String, String, String, String) WriteElementString(String, String, String, String)

指定されたプレフィックス、ローカル名、名前空間 URI、および値を使用して要素を書き込みます。Writes an element with the specified prefix, local name, namespace URI, and value.

注釈

このメソッドの非同期バージョンについてはWriteElementStringAsync、「」を参照してください。For the asynchronous version of this method, see WriteElementStringAsync.

WriteElementString(String, String) WriteElementString(String, String) WriteElementString(String, String) WriteElementString(String, String)

指定されたローカル名および値を使用して要素を書き込みます。Writes an element with the specified local name and value.

public:
 void WriteElementString(System::String ^ localName, System::String ^ value);
public void WriteElementString (string localName, string value);
member this.WriteElementString : string * string -> unit
Public Sub WriteElementString (localName As String, value As String)

パラメーター

localName
String String String String

要素のローカル名。The local name of the element.

value
String String String String

要素の値。The value of the element.

例外

localName 値が null または空の文字列です。The localName value is null or an empty string.

- または --or- パラメーターの値が有効ではありません。The parameter values are not valid.

有効な XML 文字であるが出力エンコーディングには有効でない文字がバッファー内にあります。There is a character in the buffer that is a valid XML character but is not valid for the output encoding. たとえば、出力エンコーディングが ASCII の場合、要素名と属性名には 0 ~ 127 の範囲の文字だけを使用する必要があります。For example, if the output encoding is ASCII, you should only use characters from the range of 0 to 127 for element and attribute names. 無効な文字は、このメソッドの引数か、バッファーに書き込んでいた以前のメソッドの引数に含まれている可能性があります。The invalid character might be in the argument of this method or in an argument of previous methods that were writing to the buffer. このような文字は、可能であれば文字エンティティ参照によってエスケープされます (たとえば、テキスト ノード内や属性値内で)。Such characters are escaped by character entity references when possible (for example, in text nodes or attribute values). ただし、文字エンティティの参照は、要素名と属性名、コメント、処理命令、または CDATA セクションでは使用できません。However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.

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."

次の例では、いくつかの書き込みメソッドを使用して XML フラグメントを作成します。The following example uses several write methods to create an XML fragment.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
public ref class Sample
{
private:
   static String^ m_Document = L"sampledata.xml";

public:
   static void Main()
   {
      XmlWriter^ writer = nullptr;
      try
      {
         XmlWriterSettings^ settings = gcnew XmlWriterSettings;
         settings->Indent = true;
         writer = XmlWriter::Create( m_Document,settings );
         writer->WriteComment( L"sample XML fragment" );
         
         // Write an element (this one is the root).
         writer->WriteStartElement( L"book" );
         
         // Write the namespace declaration.
         writer->WriteAttributeString( L"xmlns", L"bk", nullptr, L"urn:samples" );
         
         // Write the genre attribute.
         writer->WriteAttributeString( L"genre", L"novel" );
         
         // Write the title.
         writer->WriteStartElement( L"title" );
         writer->WriteString( L"The Handmaid's Tale" );
         writer->WriteEndElement();
         
         // Write the price.
         writer->WriteElementString( L"price", L"19.95" );
         
         // Lookup the prefix and write the ISBN element.
         String^ prefix = writer->LookupPrefix( L"urn:samples" );
         writer->WriteStartElement( prefix, L"ISBN", L"urn:samples" );
         writer->WriteString( L"1-861003-78" );
         writer->WriteEndElement();
         
         // Write the style element (shows a different way to handle prefixes).
         writer->WriteElementString( L"style", L"urn:samples", L"hardcover" );
         
         // Write the close tag for the root element.
         writer->WriteEndElement();
         
         // Write the XML to file and close the writer.
         writer->Flush();
         writer->Close();
      }
      finally
      {
         if ( writer != nullptr )
                  writer->Close();
      }

   }

};

void main()
{
   Sample::Main();
}

using System;
using System.IO;
using System.Xml;
 
 public class Sample
 {
   private const string m_Document = "sampledata.xml";
 
   public static void Main() {
   
      XmlWriter writer = null;

      try {
     
        XmlWriterSettings settings = new XmlWriterSettings();
        settings.Indent = true;
        writer = XmlWriter.Create (m_Document, settings);
           
        writer.WriteComment("sample XML fragment");
     
        // Write an element (this one is the root).
        writer.WriteStartElement("book");
 
        // Write the namespace declaration.
        writer.WriteAttributeString("xmlns", "bk", null, "urn:samples");
    
        // Write the genre attribute.
        writer.WriteAttributeString("genre", "novel");
         
        // Write the title.
        writer.WriteStartElement("title");
        writer.WriteString("The Handmaid's Tale");
        writer.WriteEndElement();
               
        // Write the price.
        writer.WriteElementString("price", "19.95");
      
        // Lookup the prefix and write the ISBN element.
        string prefix = writer.LookupPrefix("urn:samples");
        writer.WriteStartElement(prefix, "ISBN", "urn:samples");
        writer.WriteString("1-861003-78");
        writer.WriteEndElement();

        // Write the style element (shows a different way to handle prefixes).
        writer.WriteElementString("style", "urn:samples", "hardcover");
 
        // Write the close tag for the root element.
        writer.WriteEndElement();
               
        // Write the XML to file and close the writer.
        writer.Flush();
        writer.Close();
      }

      finally {
        if (writer != null)
           writer.Close();
     } 
   }
 
 }
Option Strict
Option Explicit

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample
    Private Shared m_Document As String = "sampledata.xml"
    
    Public Shared Sub Main()
        Dim writer As XmlWriter = Nothing
        
      Try

        Dim settings As XmlWriterSettings = new XmlWriterSettings()
        settings.Indent = true
        writer = XmlWriter.Create (m_Document, settings)
            
        writer.WriteComment("sample XML fragment")
            
        ' Write an element (this one is the root).
        writer.WriteStartElement("book")
            
        ' Write the namespace declaration.
        writer.WriteAttributeString("xmlns", "bk", Nothing, "urn:samples")
            
        ' Write the genre attribute.
        writer.WriteAttributeString("genre", "novel")
            
        ' Write the title.
        writer.WriteStartElement("title")
        writer.WriteString("The Handmaid's Tale")
        writer.WriteEndElement()
            
        ' Write the price.
        writer.WriteElementString("price", "19.95")
            
        ' Lookup the prefix and write the ISBN element.
        Dim prefix As String = writer.LookupPrefix("urn:samples")
        writer.WriteStartElement(prefix, "ISBN", "urn:samples")
        writer.WriteString("1-861003-78")
        writer.WriteEndElement()
            
        ' Write the style element (shows a different way to handle prefixes).
        writer.WriteElementString("style", "urn:samples", "hardcover")
            
        ' Write the close tag for the root element.
        writer.WriteEndElement()
            
        ' Write the XML to file and close the writer.
        writer.Flush()
        writer.Close()
        
        Finally
            If Not (writer Is Nothing) Then
                writer.Close()
            End If
        End Try

    End Sub 'Main 
End Class 'Sample

注釈

このメソッドの非同期バージョンについてはWriteElementStringAsync、「」を参照してください。For the asynchronous version of this method, see WriteElementStringAsync.

WriteElementString(String, String, String) WriteElementString(String, String, String) WriteElementString(String, String, String) WriteElementString(String, String, String)

指定されたローカル名、名前空間 URI、および値を使用して要素を書き込みます。Writes an element with the specified local name, namespace URI, and value.

public:
 void WriteElementString(System::String ^ localName, System::String ^ ns, System::String ^ value);
public void WriteElementString (string localName, string ns, string value);
member this.WriteElementString : string * string * string -> unit
Public Sub WriteElementString (localName As String, ns As String, value As String)

パラメーター

localName
String String String String

要素のローカル名。The local name of the element.

ns
String String String String

要素に関連付ける名前空間 URI。The namespace URI to associate with the element.

value
String String String String

要素の値。The value of the element.

例外

localName 値が null または空の文字列です。The localName value is null or an empty string.

- または --or- パラメーターの値が有効ではありません。The parameter values are not valid.

有効な XML 文字であるが出力エンコーディングには有効でない文字がバッファー内にあります。There is a character in the buffer that is a valid XML character but is not valid for the output encoding. たとえば、出力エンコーディングが ASCII の場合、要素名と属性名には 0 ~ 127 の範囲の文字だけを使用する必要があります。For example, if the output encoding is ASCII, you should only use characters from the range of 0 to 127 for element and attribute names. 無効な文字は、このメソッドの引数か、バッファーに書き込んでいた以前のメソッドの引数に含まれている可能性があります。The invalid character might be in the argument of this method or in an argument of previous methods that were writing to the buffer. このような文字は、可能であれば文字エンティティ参照によってエスケープされます (たとえば、テキスト ノード内や属性値内で)。Such characters are escaped by character entity references when possible (for example, in text nodes or attribute values). ただし、文字エンティティの参照は、要素名と属性名、コメント、処理命令、または CDATA セクションでは使用できません。However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.

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."

次の例では、いくつかの書き込みメソッドを使用して XML フラグメントを作成します。The following example uses several write methods to create an XML fragment.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
public ref class Sample
{
private:
   static String^ m_Document = L"sampledata.xml";

public:
   static void Main()
   {
      XmlWriter^ writer = nullptr;
      try
      {
         XmlWriterSettings^ settings = gcnew XmlWriterSettings;
         settings->Indent = true;
         writer = XmlWriter::Create( m_Document,settings );
         writer->WriteComment( L"sample XML fragment" );
         
         // Write an element (this one is the root).
         writer->WriteStartElement( L"book" );
         
         // Write the namespace declaration.
         writer->WriteAttributeString( L"xmlns", L"bk", nullptr, L"urn:samples" );
         
         // Write the genre attribute.
         writer->WriteAttributeString( L"genre", L"novel" );
         
         // Write the title.
         writer->WriteStartElement( L"title" );
         writer->WriteString( L"The Handmaid's Tale" );
         writer->WriteEndElement();
         
         // Write the price.
         writer->WriteElementString( L"price", L"19.95" );
         
         // Lookup the prefix and write the ISBN element.
         String^ prefix = writer->LookupPrefix( L"urn:samples" );
         writer->WriteStartElement( prefix, L"ISBN", L"urn:samples" );
         writer->WriteString( L"1-861003-78" );
         writer->WriteEndElement();
         
         // Write the style element (shows a different way to handle prefixes).
         writer->WriteElementString( L"style", L"urn:samples", L"hardcover" );
         
         // Write the close tag for the root element.
         writer->WriteEndElement();
         
         // Write the XML to file and close the writer.
         writer->Flush();
         writer->Close();
      }
      finally
      {
         if ( writer != nullptr )
                  writer->Close();
      }

   }

};

void main()
{
   Sample::Main();
}

using System;
using System.IO;
using System.Xml;
 
 public class Sample
 {
   private const string m_Document = "sampledata.xml";
 
   public static void Main() {
   
      XmlWriter writer = null;

      try {
     
        XmlWriterSettings settings = new XmlWriterSettings();
        settings.Indent = true;
        writer = XmlWriter.Create (m_Document, settings);
           
        writer.WriteComment("sample XML fragment");
     
        // Write an element (this one is the root).
        writer.WriteStartElement("book");
 
        // Write the namespace declaration.
        writer.WriteAttributeString("xmlns", "bk", null, "urn:samples");
    
        // Write the genre attribute.
        writer.WriteAttributeString("genre", "novel");
         
        // Write the title.
        writer.WriteStartElement("title");
        writer.WriteString("The Handmaid's Tale");
        writer.WriteEndElement();
               
        // Write the price.
        writer.WriteElementString("price", "19.95");
      
        // Lookup the prefix and write the ISBN element.
        string prefix = writer.LookupPrefix("urn:samples");
        writer.WriteStartElement(prefix, "ISBN", "urn:samples");
        writer.WriteString("1-861003-78");
        writer.WriteEndElement();

        // Write the style element (shows a different way to handle prefixes).
        writer.WriteElementString("style", "urn:samples", "hardcover");
 
        // Write the close tag for the root element.
        writer.WriteEndElement();
               
        // Write the XML to file and close the writer.
        writer.Flush();
        writer.Close();
      }

      finally {
        if (writer != null)
           writer.Close();
     } 
   }
 
 }
Option Strict
Option Explicit

Imports System
Imports System.IO
Imports System.Xml

Public Class Sample
    Private Shared m_Document As String = "sampledata.xml"
    
    Public Shared Sub Main()
        Dim writer As XmlWriter = Nothing
        
      Try

        Dim settings As XmlWriterSettings = new XmlWriterSettings()
        settings.Indent = true
        writer = XmlWriter.Create (m_Document, settings)
            
        writer.WriteComment("sample XML fragment")
            
        ' Write an element (this one is the root).
        writer.WriteStartElement("book")
            
        ' Write the namespace declaration.
        writer.WriteAttributeString("xmlns", "bk", Nothing, "urn:samples")
            
        ' Write the genre attribute.
        writer.WriteAttributeString("genre", "novel")
            
        ' Write the title.
        writer.WriteStartElement("title")
        writer.WriteString("The Handmaid's Tale")
        writer.WriteEndElement()
            
        ' Write the price.
        writer.WriteElementString("price", "19.95")
            
        ' Lookup the prefix and write the ISBN element.
        Dim prefix As String = writer.LookupPrefix("urn:samples")
        writer.WriteStartElement(prefix, "ISBN", "urn:samples")
        writer.WriteString("1-861003-78")
        writer.WriteEndElement()
            
        ' Write the style element (shows a different way to handle prefixes).
        writer.WriteElementString("style", "urn:samples", "hardcover")
            
        ' Write the close tag for the root element.
        writer.WriteEndElement()
            
        ' Write the XML to file and close the writer.
        writer.Flush()
        writer.Close()
        
        Finally
            If Not (writer Is Nothing) Then
                writer.Close()
            End If
        End Try

    End Sub 'Main 
End Class 'Sample

注釈

このメソッドの非同期バージョンについてはWriteElementStringAsync、「」を参照してください。For the asynchronous version of this method, see WriteElementStringAsync.

WriteElementString(String, String, String, String) WriteElementString(String, String, String, String) WriteElementString(String, String, String, String) WriteElementString(String, String, String, String)

指定されたプレフィックス、ローカル名、名前空間 URI、および値を使用して要素を書き込みます。Writes an element with the specified prefix, local name, namespace URI, and value.

public:
 void WriteElementString(System::String ^ prefix, System::String ^ localName, System::String ^ ns, System::String ^ value);
public void WriteElementString (string prefix, string localName, string ns, string value);
member this.WriteElementString : string * string * string * string -> unit
Public Sub WriteElementString (prefix As String, localName As String, ns As String, value As String)

パラメーター

prefix
String String String String

要素のプレフィックス。The prefix of the element.

localName
String String String String

要素のローカル名。The local name of the element.

ns
String String String String

要素の名前空間 URI。The namespace URI of the element.

value
String String String String

要素の値。The value of the element.

例外

localName 値が null または空の文字列です。The localName value is null or an empty string.

- または --or- パラメーターの値が有効ではありません。The parameter values are not valid.

有効な XML 文字であるが出力エンコーディングには有効でない文字がバッファー内にあります。There is a character in the buffer that is a valid XML character but is not valid for the output encoding. たとえば、出力エンコーディングが ASCII の場合、要素名と属性名には 0 ~ 127 の範囲の文字だけを使用する必要があります。For example, if the output encoding is ASCII, you should only use characters from the range of 0 to 127 for element and attribute names. 無効な文字は、このメソッドの引数か、バッファーに書き込んでいた以前のメソッドの引数に含まれている可能性があります。The invalid character might be in the argument of this method or in an argument of previous methods that were writing to the buffer. このような文字は、可能であれば文字エンティティ参照によってエスケープされます (たとえば、テキスト ノード内や属性値内で)。Such characters are escaped by character entity references when possible (for example, in text nodes or attribute values). ただし、文字エンティティの参照は、要素名と属性名、コメント、処理命令、または CDATA セクションでは使用できません。However, the character entity reference is not allowed in element and attribute names, comments, processing instructions, or CDATA sections.

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."

注釈

このメソッドの非同期バージョンについてはWriteElementStringAsync、「」を参照してください。For the asynchronous version of this method, see WriteElementStringAsync.

適用対象