How to change an xml file elements attributes in vb.net

Question

Hi I have a class Booking that stores booking information, I have to have BOOKING to look like this

Answer 1

      Dim swLineItem As New IO.StringWriter()
        Dim xmlWriter As New System.Xml.XmlTextWriter(swLineItem)

 xmlWriter.WriteStartDocument()
   xmlWriter.WriteStartElement("YourOuterMostElement")
     xmlWriter.WriteStartElement("Booking") 
       xmlWriter.WriteAttributeString("partner", "CompanyName")
       xmlWriter.WriteAttributeString("transaction", "BOOKING")
       xmlWriter.WriteAttributeString("version", "1.0")

     xmlWriter.WriteEndElement()
    xmlWriter.WriteEndElement()
 xmlWriter.WriteEndDocument()