Imports System
Imports System.Xml

' Reads an XML document using ReadChars
Public Class Sample
    Private Const filename As String = "items.xml"

    Public Shared Sub Main()
        Dim reader As XmlTextReader = Nothing

        Try
            ' Declare variables used by ReadChars
            Dim buffer() As Char
            Dim iCnt As Integer = 0
            Dim charbuffersize As Integer

            ' Load the reader with the data file.  Ignore white space.
            reader = New XmlTextReader(filename)
            reader.WhitespaceHandling = WhitespaceHandling.None

            ' Set variables used by ReadChars.
            charbuffersize = 10
            buffer = New Char(charbuffersize) {}

            ' Parse the file.  Read the element content  
            ' using the ReadChars method.
            reader.MoveToContent()
            iCnt = reader.ReadChars(buffer,0,charbuffersize)
            while (iCnt > 0)
              ' Print out chars read and the buffer contents.
              Console.WriteLine("  Chars read to buffer:" & iCnt)
              Console.WriteLine("  Buffer: [{0}]", New String(buffer, 0, iCnt))
              ' Clear the buffer.
              Array.Clear(buffer, 0, charbuffersize)
              iCnt = reader.ReadChars(buffer,0,charbuffersize)
           end while

        Finally
            If Not (reader Is Nothing) Then
                reader.Close()
            End If
        End Try
    End Sub 
End Class 

using System;
using System.Xml;

// Reads an XML document using ReadChars

public class Sample {

  private const String filename = "items.xml";

  public static void Main() {

    XmlTextReader reader = null;

    try {

      // Declare variables used by ReadChars
      Char []buffer;
      int iCnt = 0;
      int charbuffersize;

      // Load the reader with the data file.  Ignore white space.
      reader = new XmlTextReader(filename);
      reader.WhitespaceHandling = WhitespaceHandling.None;

      // Set variables used by ReadChars.
      charbuffersize = 10;
      buffer = new Char[charbuffersize];

      // Parse the file.  Read the element content
      // using the ReadChars method.
      reader.MoveToContent();
      while ( (iCnt = reader.ReadChars(buffer,0,charbuffersize)) > 0 ) {
        // Print out chars read and the buffer contents.
        Console.WriteLine ("  Chars read to buffer:" + iCnt);
        Console.WriteLine ("  Buffer: [{0}]", new String(buffer,0,iCnt));
        // Clear the buffer.
        Array.Clear(buffer,0,charbuffersize);
      }

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

} // End class

#using <System.Xml.dll>

using namespace System;
using namespace System::Xml;

// Reads an XML document using ReadChars
int main()
{
   XmlTextReader^ reader = nullptr;
   String^ filename = "items.xml";
   try
   {

      // Declare variables used by ReadChars
      array<Char>^buffer;
      int iCnt = 0;
      int charbuffersize;

      // Load the reader with the data file.  Ignore white space.
      reader = gcnew XmlTextReader( filename );
      reader->WhitespaceHandling = WhitespaceHandling::None;

      // Set variables used by ReadChars.
      charbuffersize = 10;
      buffer = gcnew array<Char>(charbuffersize);

      // Parse the file.  Read the element content
      // using the ReadChars method.
      reader->MoveToContent();
      while ( (iCnt = reader->ReadChars( buffer, 0, charbuffersize )) > 0 )
      {

         // Print out chars read and the buffer contents.
         Console::WriteLine( "  Chars read to buffer:{0}", iCnt );
         Console::WriteLine( "  Buffer: [{0}]", gcnew String( buffer,0,iCnt ) );

         // Clear the buffer.
         Array::Clear( buffer, 0, charbuffersize );
      }
   }
   finally
   {
      if ( reader != nullptr )
            reader->Close();
   }

}