XmlTextReader.MoveToFirstAttribute Methode

public:
 override bool MoveToFirstAttribute();

public override bool MoveToFirstAttribute ();

override this.MoveToFirstAttribute : unit -> bool

Public Overrides Function MoveToFirstAttribute () As Boolean

Gibt zurück

true, wenn ein Attribut vorhanden ist (der Reader wechselt zum ersten Attribut), andernfalls false (die Position des Readers bleibt unverändert).

Beispiele

Im folgenden Beispiel wird der Wert des ersten Attributs des Stammknotens abgerufen.

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlTextReader^ reader = nullptr;
   try
   {
      
      //Load the reader with the XML file.
      reader = gcnew XmlTextReader( "attrs.xml" );
      
      //Read the genre attribute.
      reader->MoveToContent();
      reader->MoveToFirstAttribute();
      String^ genre = reader->Value;
      Console::WriteLine( "The genre value: {0}", genre );
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}

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

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

    try
    {
       //Load the reader with the XML file.
       reader = new XmlTextReader("attrs.xml");

       //Read the genre attribute.
       reader.MoveToContent();
       reader.MoveToFirstAttribute();
       string genre=reader.Value;
       Console.WriteLine("The genre value: " + genre);
     }
     finally
     {
        if (reader != null)
          reader.Close();
      }
  }
} // End class

Imports System.IO
Imports System.Xml

Public Class Sample
   
   Public Shared Sub Main()
      Dim reader As XmlTextReader = Nothing
      
      Try
         'Load the reader with the XML file.
         reader = New XmlTextReader("attrs.xml")
         
         'Read the genre attribute.
         reader.MoveToContent()
         reader.MoveToFirstAttribute()
         Dim genre As String = reader.Value
         Console.WriteLine("The genre value: " & genre)
      
      Finally
         If Not (reader Is Nothing) Then
            reader.Close()
         End If
      End Try
   End Sub
End Class

Im Beispiel wird die Datei attrs.xmlals Eingabe verwendet.

<book genre='novel' ISBN='1-861003-78' pubdate='1987'>
</book>

Hinweise

Gilt für:

Weitere Informationen

• XmlReader