C # XML Class learning finishing (backlog)

First, read the contents of the XML file:

 　　　　　　  #region"Get XML file Contents"//load the XML file inXDocument Xdoc = Xdocument.load ("f:\\6.2 \\DelegateExample\\XmlConsole\\XMLFile.xml"); //get XML root element operationXElement root =Xdoc.            Root; XElement Elem= root. Element (" Book"); //get the value of the name tagXElement name = Elem. Element ("name1"); Console.WriteLine (name.            Value); Console.WriteLine ("------------------------"); //gets all child elements under the root elementienumerable<xelement> element =Root.            Elements (); foreach(XElement IteminchElement) {                foreach(XElement item1inchitem. Elements ()) {Console.WriteLine (item1.                Value); } Console.WriteLine ("------------------------"); Console.WriteLine (item. Attribute ("ID").                Value);            Console.readkey (); }            #endregion                

Second, write the XML content:

 　　　　　　  //get root node elementXDocument XDocument =NewXDocument (); XElement Roo=NewXElement ("b"); XElement Root2=NewXElement (" Book",NewXElement ("Name3","3333",NewXAttribute ("ID","3"))); XElement name1=NewXElement ("name1"); XElement ROOT3=NewXElement ("Student"); Root2. Setelementvalue ("name1","1111"); Root2. Setelementvalue ("name2","2222"); Root3. Setattributevalue ("Student1","33333"); Root3. Setelementvalue ("Student2","44444"); Roo.            ADD (NAME1); Roo.            ADD (ROOT2); Roo.            ADD (ROOT3); Roo. Save ("D://xmlfile.xml"); Console.readkey ();

Thirdly, XMLNode is an abstract class, which provides some methods for manipulating nodes.

  　　　　  //take root node.          varroot = xmldoc.documentelement;//take the root node.//to take a specified single node .XmlNode Oldchild = Xmldoc.selectsinglenode ("Bookstore/newbook"); //takes a collection of specified nodesXmlNodeList nodes = Xmldoc.selectnodes ("Bookstore/newbook"); //fetch all XML nodes .XmlNodeList nodelist = Xmldoc.getelementsbytagname ("*");

Add, delete (remove), modify node and attribute Setattributevalue () + Save (),

removechild  --Removing nodes       RemoveAttribute--Removing attributes

V. LINQ to XML (XML additions and deletions)

C # XML Class learning finishing (backlog)