asp.net C # to manipulate the basic code of an XML document

C # processing code

The code is as follows

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void Testxml () { XmlDocument doc = new XmlDocument (); String path = "Http://www.111cn.net/rss.xml"; Try { Doc. Load (path); 1, read the data of a single node XmlNode node = doc. selectSingleNode ("personf"); 2. Read data from multiple nodes XmlNodeList NodeList1 = doc. SelectNodes ("Personf/person"); 3.1 Read the specific values of specific nodes such as: InnerText of the second node name of the Person2 property XmlNodeList nodelist = doc. Documentelement.getelementsbytagname ("person"); foreach (XmlNode node2 in NodeList1)//Of course can also use nodelist value { if (Node2. attributes["Name"]. InnerText = = "Person2") { Console.WriteLine (Node2. CHILDNODES[1]. InnerText); } } 3.2 Read innertext with the second child node name of the node with ID 2 XmlNode node3 = doc. selectSingleNode ("personf/person[id=2]"); String strNode3 = Node3. CHILDNODES[1]. InnerText; 3.3 Use the following method to find the node with ID 2 XmlNodeList NodeList2 = doc. SelectNodes ("//person//id"); XmlNode node4 = null; foreach (XmlNode node5 in NodeList2) { if (NODE5. InnerText = = "2") { Node4 = NODE5; Break } } Console.WriteLine (Node4. InnerText); 4, read the properties of the node String Name = node. attributes["Name"]. InnerText; 5 Modifying the properties of a node Node. attributes["Name"]. innertext = "Work hard work smart!"; Doc. Save (path); 6 Adding a custom node XmlTextReader reader = new XmlTextReader (path); XmlElement root = Doc. documentelement;//Get root node XmlElement tagouter = doc. createelement ("person"); XmlElement tagin = doc. CreateElement ("Name"); Tagin.innertext = "Work hard work smart!"; Tagouter.appendchild (Tagin); Root. AppendChild (tagouter);//Add Tagouter to the end of the XML file Reader. Close (); Doc. Save (path); } catch (System.Exception e) { throw new Exception (e.message); } }

XML document

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<?xml Version= "1.0" encoding= "Utf-8"?> <personf xmlns= "" Name= "(test) work hard work smart!" > <person name= "Person1" > <ID>1</ID> <Name>XiaoA</Name> <age >59</Age> </person> <person name= "Person2" > <ID>2</ID> <name >XiaoB</Name> <Age>29</Age> </person> <person name= "Person3" > < Id>3</id> <Name>XiaoC</Name> <Age>103</Age> </person> < Person name= "Person4" > <ID>4</ID> <Name>XiaoD</Name> <age>59</age > </person> </personf>