XmlNodeReader.NamespaceURI プロパティ

定義

リーダーが配置されているノードの名前空間 URI (W3C の名前空間の仕様における定義に準拠) を取得します。Gets the namespace URI (as defined in the W3C Namespace specification) of the node on which the reader is positioned.

public:
 virtual property System::String ^ NamespaceURI { System::String ^ get(); };
public override string NamespaceURI { get; }
member this.NamespaceURI : string
Public Overrides ReadOnly Property NamespaceURI As String

プロパティ値

String

現在のノードの名前空間 URI。それ以外の場合は空の文字列。The namespace URI of the current node; otherwise an empty string.

次の例では、各ノードのローカル名を表示し、存在する場合はプレフィックスと名前空間 URI を表示します。The following example displays the local name of each node, and, if they exist, the prefix and namespace URI.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlNodeReader^ reader = nullptr;
   try
   {
      
      //Create and load the XML document.
      XmlDocument^ doc = gcnew XmlDocument;
      doc->LoadXml( "<book xmlns:bk='urn:samples'> "
      "<title>Pride And Prejudice</title>"
      "<bk:genre>novel</bk:genre>"
      "</book>" );
      
      //Load the XmlNodeReader 
      reader = gcnew XmlNodeReader( doc );
      
      //Parse the XML.  If they exist, display the prefix and  
      //namespace URI of each node.
      while ( reader->Read() )
      {
         if ( reader->IsStartElement() )
         {
            if ( reader->Prefix == String::Empty )
                        Console::WriteLine( "<{0}>", reader->LocalName );
            else
            {
               Console::Write( "<{0}:{1}>", reader->Prefix, reader->LocalName );
               Console::WriteLine( " The namespace URI is {0}", reader->NamespaceURI );
            }
         }
      }
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}

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

public class Sample
{
  public static void Main()
  {
    XmlNodeReader reader = null;

    try
    {
       //Create and load the XML document.
       XmlDocument doc = new XmlDocument();
       doc.LoadXml("<book xmlns:bk='urn:samples'> " +
                   "<title>Pride And Prejudice</title>" +
                   "<bk:genre>novel</bk:genre>" +
                   "</book>");

       //Load the XmlNodeReader
       reader = new XmlNodeReader(doc);

       //Parse the XML.  If they exist, display the prefix and
       //namespace URI of each node.
       while (reader.Read()){
         if (reader.IsStartElement()){
           if (reader.Prefix==String.Empty)
                    {
                        Console.WriteLine("<{0}>", reader.LocalName);
                    }
                    else
                    {
               Console.Write("<{0}:{1}>", reader.Prefix, reader.LocalName);
               Console.WriteLine(" The namespace URI is " + reader.NamespaceURI);
           }
         }
       }
     }
     finally
     {
        if (reader != null)
          reader.Close();
      }
  }
} // End class
Imports System.IO
Imports System.Xml

Public Class Sample
    Public Shared Sub Main()
        Dim reader As XmlNodeReader = Nothing
        
        Try
            'Create and load the XML document.
            Dim doc As New XmlDocument()
            doc.LoadXml("<book xmlns:bk='urn:samples'> " & _
                       "<title>Pride And Prejudice</title>" & _
                       "<bk:genre>novel</bk:genre>" & _
                       "</book>")
            
            'Load the XmlNodeReader 
            reader = New XmlNodeReader(doc)
            
            'Parse the XML.  If they exist, display the prefix and  
            'namespace URI of each node.
            While reader.Read()
                If reader.IsStartElement() Then
                    If reader.Prefix = String.Empty Then
                        Console.WriteLine("<{0}>", reader.LocalName)
                    Else
                        Console.Write("<{0}:{1}>", reader.Prefix, reader.LocalName)
                        Console.WriteLine(" The namespace URI is " & reader.NamespaceURI)
                    End If
                End If
            End While
        
        Finally
            If Not (reader Is Nothing) Then
                reader.Close()
            End If
        End Try
    End Sub
End Class

注釈

注意

.NET Framework 2.0 では、 XmlReader クラスとメソッドを使用してインスタンスを作成することをお勧めし XmlReaderSettings Create ます。In the .NET Framework 2.0, the recommended practice is to create XmlReader instances using the XmlReaderSettings class and the Create method. これにより、.NET Framework で導入されたすべての新機能を最大限に活用することができます。This allows you to take full advantage of all the new features introduced in the .NET Framework. 詳細については、リファレンスページの「解説」を参照してください XmlReaderFor more information, see the Remarks section in the XmlReader reference page.

このプロパティは Element 、ノードと Attribute ノードのみに関連しています。This property is relevant to Element and Attribute nodes only.

適用対象