XmlDocument.CreateAttribute
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 attr As XmlAttribute = doc.CreateAttribute("publisher") attr.Value = "PC" doc.DocumentElement.SetAttributeNode(attr) doc.Save(Console.Out) End Sub 'Main End Class 'Sample