Convert C# Form Data to XML File

FormToXML.cs

Protected Sub FormToXML (ByVal sender As Object, ByVal e As System.EventArgs)

  // Create the XML document object with specified parametres
  Dim XMLDoc As XDocument

  XMLDoc = New XDocument(
    New XDeclaration("1.0", "utf-8", "yes"),
    New XElement("user",
      New XElement("details",
        New XElement("firstname", Firstname.Text),
        New XElement("surname", Lastname.Text)
      )
    )
  )

  // Save test file
  XMLDoc.Save("C:\test.xml")

End Sub