XML VB.Net

Option Strict
Option Explicit
Imports System
Imports System.IO
Imports System.Xml
Public Class Sample
    Public Shared Sub Main()
        Dim writer As XmlTextWriter = Nothing
        writer = New XmlTextWriter("ws.html", Nothing)
        writer.WriteStartElement("p")
        writer.WriteAttributeString("xml", "space", Nothing, "preserve")
        If writer.XmlSpace = XmlSpace.Preserve Then
            Console.WriteLine("xmlspace is correct!")
        End If 
        writer.WriteString("something")
        writer.WriteWhitespace("  ")
        writer.WriteElementString("b", "B")
        writer.WriteString("ig")
        writer.WriteEndElement()
        writer.Close()
    End Sub 
End Class