Add new node to xml

1.Load XML file.
2.Select root node.
3.Creat child nodes and elements.
4.Initial value.
5.Append element and child nodes .
CS Code:

            string XmlFilePath=Server.MapPath("Articles.xml");
            XmlDocument  MyXml = new XmlDocument();//Creat new document object;
            MyXml.Load(XmlFilePath);//Load XML file;

            XmlNode RootNode = MyXml.SelectSingleNode("Articles");//Select root node;

            //Creat elements;
            XmlElement Article = MyXml.CreateElement("Article");
            XmlElement Title = MyXml.CreateElement("Title");
            XmlElement Type = MyXml.CreateElement("Type");
            XmlElement Content = MyXml.CreateElement("Content");
            XmlElement TrackUrl = MyXml.CreateElement("TrackUrl");
            XmlElement UploadDate=MyXml.CreateElement("UploadDate");
            XmlElement ID = MyXml.CreateElement("ID");
            //Elements Initial value.
            Title.InnerText="Article title";
            Type.InnerText="Article type";
            Content.InnerText="Article content";
            UploadDate.InnerText=DateTime.Now.ToShortDateString()+" " +System.DateTime.Now.ToLongTimeString();
            TrackUrl.InnerText="Track Url";
            ID.InnerText="ID";

            Article.AppendChild(ID);
            Article.AppendChild(Title);
            Article.AppendChild(Type);
            Article.AppendChild(Content);
            Article.AppendChild(TrackUrl);
            Article.AppendChild(UploadDate);//Apend elements to child node;
            RootNode.AppendChild(Article); //Apend child node;
            try
            {
                MyXml.Save(XmlFilePath);//Save data;
            }
            catch
            {
                Response.Write("Save XML data fail,please try it again.");//Error;
            }
            MyXml=null;

XML Code:

<?xml version="1.0" encoding="utf-8"?>
<Articles>
  <Article>
    <ID>ID</ID>
    <Title>Aticle title</Title>
    <Type>Article type</Type>
    <Content>Article content</Content>
    <TrackUrl>Track Url</TrackUrl>
    <UploadDate>2006-10-25 8:36:33</UploadDate>
  </Article>
</Articles>

*Make sure that yours account has the power to write XML file,else it will throw out an error.
Thats all.

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