XmlValidatingReader.MoveToElement メソッド

public:
 override bool MoveToElement();

public override bool MoveToElement ();

override this.MoveToElement : unit -> bool

Public Overrides Function MoveToElement () As Boolean

戻り値

リーダーが属性の位置に配置されている場合は true で、属性を所有している要素の位置にリーダーが移動します。リーダーが属性の位置に配置されていない場合は false で、リーダーの位置が変更されません。

例

次の例では、ルート ノード上のすべての要素を読み取ります。

#using <System.Xml.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
int main()
{
   XmlValidatingReader^ reader = nullptr;
   try
   {
      
      //Create the string to parse.
      String^ xmlFrag = "<book genre='novel' ISBN='1-861003-78' pubdate='1987'></book> ";
      
      //Create the XmlNamespaceManager.
      NameTable^ nt = gcnew NameTable;
      XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager( nt );
      
      //Create the XmlParserContext.
      XmlParserContext^ context = gcnew XmlParserContext( nullptr,nsmgr,nullptr,XmlSpace::None );
      
      //Create the XmlValidatingReader .
      reader = gcnew XmlValidatingReader( xmlFrag,XmlNodeType::Element,context );
      
      //Read the attributes on the root element.
      reader->MoveToContent();
      if ( reader->HasAttributes )
      {
         for ( int i = 0; i < reader->AttributeCount; i++ )
         {
            reader->MoveToAttribute( i );
            Console::WriteLine( "{0} = {1}", reader->Name, reader->Value );

         }
         reader->MoveToElement();
      }
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}

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

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

    try
    {
       //Create the string to parse.
       string xmlFrag="<book genre='novel' ISBN='1-861003-78' pubdate='1987'></book> ";

       //Create the XmlNamespaceManager.
       NameTable nt = new NameTable();
       XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);

       //Create the XmlParserContext.
       XmlParserContext context = new XmlParserContext(null, nsmgr, null, XmlSpace.None);

       //Create the XmlValidatingReader .
       reader = new XmlValidatingReader(xmlFrag, XmlNodeType.Element, context);

       //Read the attributes on the root element.
       reader.MoveToContent();
       if (reader.HasAttributes){
         for (int i=0; i<reader.AttributeCount; i++){
            reader.MoveToAttribute(i);
            Console.WriteLine("{0} = {1}", reader.Name, reader.Value);
         }
         //Move the reader back to the node that owns the attribute.
         reader.MoveToElement();
       }
     }

     finally
     {
        if (reader != null)
          reader.Close();
      }
  }
} // End class

Option Strict
Option Explicit

Imports System.IO
Imports System.Xml

Public Class Sample
    
    Public Shared Sub Main()
        Dim reader As XmlValidatingReader = Nothing
        
        Try
            'Create the string to parse.
            Dim xmlFrag As String = "<book genre='novel' ISBN='1-861003-78' pubdate='1987'></book> "
            
            'Create the XmlNamespaceManager.
            Dim nt As New NameTable()
            Dim nsmgr As New XmlNamespaceManager(nt)
            
            'Create the XmlParserContext.
            Dim context As New XmlParserContext(Nothing, nsmgr, Nothing, XmlSpace.None)
            
            'Create the XmlValidatingReader .
            reader = New XmlValidatingReader(xmlFrag, XmlNodeType.Element, context)
            
            'Read the attributes on the root element.
            reader.MoveToContent()
            If reader.HasAttributes Then
                Dim i As Integer
                For i = 0 To reader.AttributeCount - 1
                    reader.MoveToAttribute(i)
                    Console.WriteLine("{0} = {1}", reader.Name, reader.Value)
                Next i
                'Move the reader back to the node that owns the attribute.
                reader.MoveToElement()
            End If
        
        
        Finally
            If Not (reader Is Nothing) Then
                reader.Close()
            End If
        End Try
    End Sub
End Class

注釈

このメソッドを使用して、その属性内を移動した後に要素に戻ります。 このメソッドは、リーダーを 、、または XmlDeclarationのいずれかのノードの種類ElementDocumentTypeに移動します。

適用対象

こちらもご覧ください

• XmlReader