?1. Some specific? name: XmlDocument XmlNodeList XmlNode XmlElement
????The whole architecture and relation among them is following
????Attentions:selectsinglenodelist（”users”）,用于獲取users下面的所有直接子節點。這個方法經常用到
2. the difference between xmlnode and xmlelement
????XmlElement從XmlNode繼承而來，功能基本相同，但XmlElement有更多的功能???
?3. Insert data into XML file sample:
? Sample 1:
? XmlDocument xdoc = new XmlDocument();
??????? xdoc.Load(HttpContext.Current.Server.MapPath("user.config"));

??????? XmlElement xde = xdoc.DocumentElement;
??????? XmlElement xe = xdoc.CreateElement("user");
??????? xe.SetAttribute("Login", login);
??????? xe.SetAttribute("Password", pwd);
??????? xe.SetAttribute("RootFolder", rootfolder);
??????? xe.SetAttribute("Rights", rights);
??????? xde.AppendChild(xe);
??????? xdoc.Save(HttpContext.Current.Server.MapPath("user.config"));
the xml file is the following
<?xml version="1.0" standalone="yes"?>
<users>
? <user Login="sanxumei" Password="sanxumei" RootFolder="c:\inetpub\wwroot" Rights="User" />
</users>

?Sample 2:
XmlDocument xmlDoc=new XmlDocument();
???xmlDoc.Load("bookstore.xml");
???XmlNode root=xmlDoc.SelectSingleNode("bookstore");//查找<bookstore>
???XmlElement xe1=xmlDoc.CreateElement("book");//創建一個<book>節點
???xe1.SetAttribute("genre","李贊紅");//設置該節點genre屬性
???xe1.SetAttribute("ISBN","2-3631-4");//設置該節點ISBN屬性
?
???XmlElement xesub1=xmlDoc.CreateElement("title");
???xesub1.InnerText="CS從入門到精通";//設置文本節點
???xe1.AppendChild(xesub1);//添加到<book>節點中
???XmlElement xesub2=xmlDoc.CreateElement("author");
???xesub2.InnerText="候捷";
???xe1.AppendChild(xesub2);
???XmlElement xesub3=xmlDoc.CreateElement("price");
???xesub3.InnerText="58.3";
???xe1.AppendChild(xesub3);
?
???root.AppendChild(xe1);//添加到<bookstore>節點中
???xmlDoc.Save("bookstore.xml");

轉載于:https://www.cnblogs.com/Winston/archive/2008/01/04/1026475.html

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