XmlDocument.CreateElement creates an element with the specified name.
Option Explicit
Option Strict
Imports System
Imports System.IO
Imports System.Xml
Public Class Sample
Public Shared Sub Main()
Dim doc As New XmlDocument()
doc.LoadXml("<book genre='Computer' ISBN='1-111111-57-5'>" & _
"<title>C#</title>" & _
"</book>")
Dim elem As XmlElement = doc.CreateElement("price")
Dim text As XmlText = doc.CreateTextNode("9.9")
doc.DocumentElement.AppendChild(elem)
doc.DocumentElement.LastChild.AppendChild(text)
doc.Save(Console.Out)
End Sub 'Main
End Class 'Sample