Adds the specified node to the end of the list of child nodes, of this node.
using System; using System.IO; using System.Xml; public class Sample { public static void Main() { XmlDocument doc = new XmlDocument(); doc.LoadXml("<book genre='novel' ISBN='1-111111-57-5'>" + "<title>C#</title>" + "</book>"); XmlNode root = doc.DocumentElement; XmlElement elem = doc.CreateElement("price"); elem.InnerText="9.9"; root.AppendChild(elem); doc.Save(Console.Out); } }