using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        var bench = new XElement("bench",
                      new XElement("A",
                        new XElement("B", "H"),
                        new XElement("B", "R")
                      ),
                      new XElement("A",
                        new XElement("B", "S"),
                        new XElement("C", "N")
                      ),
                      new XComment("comment")
                    );
        foreach (XElement e in bench.Elements())
            Console.WriteLine(e.Name + "=" + e.Value);
    }
}

    

   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XProcessingInstruction procInst;
        XDocument xDocument = new XDocument(
          new XElement("Books"),
          procInst = new XProcessingInstruction("Book", "out-of-print"));

        Console.WriteLine(xDocument);

        procInst.Target = "BookContactManager";
        procInst.Data = "update";
        Console.WriteLine(xDocument);
    }
}

    

   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocumentType docType;
        XDocument xDocument = new XDocument(docType = new XDocumentType("Books", null,"Books.dtd", null),
          new XElement("Books"));
        Console.WriteLine("Before updating document type:");
        Console.WriteLine(xDocument);

        docType.Name = "MyBooks";
        docType.SystemId = "http://www.yoursite.com/DTDs/MyBooks.DTD";
        docType.PublicId = "-//DTDs//TEXT Book Participants//EN";

        Console.WriteLine(xDocument);
    }
}

    

   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XElement firstParticipant;
        XDocument xDocument = new XDocument(
          new XElement("Books", firstParticipant =
            new XElement("Book",
              new XComment("This is a new author."),
              new XAttribute("type", "Author"),
              new XElement("FirstName", "J"),
              new XElement("LastName", "R"))));

        Console.WriteLine(xDocument);
        firstParticipant.Element("FirstName").Value = "J";
        firstParticipant.Nodes().OfType<XComment>().Single().Value ="LINQ";
        ((XElement)firstParticipant.Element("FirstName").NextNode).Nodes().OfType<XText>().Single().Value = "R";
        Console.WriteLine(xDocument);

    }
}

    

   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument();
        XDocumentType documentType = new XDocumentType("Books", null, "Books.dtd", null);
        xDocument.Add(documentType, new XElement("Books"));
        Console.WriteLine(xDocument);
    }
}

    

   
 

using System;
using System.Linq;
using System.Collections;
using System.Collections.Generic;
using System.Xml;
using System.Xml.Linq;
public class MainClass {
    public static void Main() {
        XDocument xDocument = new XDocument(new XDocumentType("Books",null,"Books.dtd", null),new XElement("Book"));
        Console.WriteLine(xDocument);
    }
}

    

   
 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Xml;
using System.Xml.Linq;
using System.IO;


public class MainClass{

   public static void Main(string[] args){   
      XDocument NewDoc = new XDocument(new XDeclaration("1.0", "utf-8", "yes"),
            new XElement("Root", "MyDoc"));  
      XElement ThisElement = new XElement("{http://www.kutayzorlu.com/java2s/com/}First",new XAttribute(XNamespace.Xmlns + "NewNS",
                  "http://www.microsoft.com"),"Hello");
      Console.WriteLine(ThisElement.ToString());

      XName ThisName = ThisElement.Name;

      Console.WriteLine(ThisName.LocalName +
            "
Namespace: " + ThisName.Namespace +
            "
Namespace Name: " + ThisName.NamespaceName);

      ThisName = ThisElement.Attribute(XNamespace.Xmlns + "NewNS").Name;

      Console.WriteLine("Second Local Name: " + ThisName.LocalName +
           "
Second Namespace: " + ThisName.Namespace +
           "
Second Namespace Name: " + ThisName.NamespaceName +
           "
Attribute Value: " + 
               ThisElement.Attribute(XNamespace.Xmlns + "NewNS").Value);
   }
}