C # Basic Operations summary FOR XML

C # Basic operations for XML include reading data from nodes, adding nodes. Read node properties, modify node properties, and so on. Specific as follows:

XML file: File under the mydocument folder

<?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>

　　

Code: The instructions are all in the comments.

        public void Testxml () {XmlDocument doc = new XmlDocument ();            String path = "Http://www.cnblogs.com/MyDocument/Person.xml"; try {//doc. Load (Server.MapPath () Doc.                Load (path); 1. Read the data XmlNode node = doc for individual nodes.                selectSingleNode ("personf"); 2. Read data from multiple nodes XmlNodeList NodeList1 = doc.                SelectNodes ("Personf/person"); 3.1 Read specific values for specific nodes such as: The second node of the Person2 property name innertext XmlNodeList nodeList = doc.                Documentelement.getelementsbytagname ("person"); foreach (XmlNode node2 in NodeList1)//Can of course also use the value of NodeList {if (node2. attributes["Name"]. InnerText = = "Person2") {Console.WriteLine (node2. CHILDNODES[1].                    InnerText); }}//3.2 reads the node with ID 2 The second child node of name innertext 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 Modify the node's properties. attributes["Name"].                InnerText = "Work hard work smart!"; Doc.                Save (path);                6 Adding a custom node XmlTextReader reader = new XmlTextReader (path); XmlElement root = Doc. documentelement;//Gets the root node XmlElement tagouter = Doc.                createelement ("person"); //Set node Properties Tagouter.setattribute ("Name", "Person5"); XmlElement tagin_name = doc.                CreateElement ("Name"); XmlElement tagin_id = doc.                CreateElement ("ID");                Tagin_name.innertext = "Work hard work smart!"; tagin_id.                InnerText = "32";                Tagouter.appendchild (Tagin_name);                Tagouter.appendchild (tagin_id); Root. AppendChild (tagouter);//Add Tagouter to the last reader of the XML file.                Close (); Doc.            Save (path);            } catch (System.Exception e) {throw new Exception (e.message); }        }

　　

The following is a concrete operation of the XML for C #

How to complete. NET read and write operations of XML documents

C # Operations XML Selectnodes,selectsinglenode always returns null with XPath introduction

parsing XML files with multiple namespaces using the selectSingleNode method in C #

　　

Original link: http://www.cnblogs.com/linlf03/archive/2011/10/10/2205896.html

C # Basic Operations summary FOR XML