CSharp - Traversing Up from an XElement Object via the Ancestors Method

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Description

Traversing Up from an XElement Object via the Ancestors Method

Demo

using System;
using System.Linq;
using System.Xml.Linq;
using System.Collections.Generic;

class Program//from w  ww.j  av  a2 s .c  om
{
    static void Main(string[] args){
        XElement firstParticipant;
        
        //  A full document with all the bells and whistles.
        XDocument xDocument = new XDocument(
          new XDeclaration("1.0", "UTF-8", "yes"),
          new XDocumentType("Books", null, "Books.dtd", null),
          new XProcessingInstruction("BookCataloger", "out-of-print"),
          //  Notice on the next line that we are saving off a reference to the first
          //  Book element.
          new XElement("Books", firstParticipant =
            new XElement("Book",
              new XComment("This is a new author."),
              new XProcessingInstruction("AuthorHandler", "new"),
              new XAttribute("type", "Author"),
              new XElement("FirstName",
                new XText("Joe"),
                new XElement("NickName", "Joey")),
              new XElement("LastName", "Ruby")),
            new XElement("Book",
              new XAttribute("type", "Editor"),
              new XElement("FirstName", "PHP"),
              new XElement("LastName", "Python"))));
        
        foreach (XElement element in firstParticipant.
          Element("FirstName").Element("NickName").Ancestors())
        {
          Console.WriteLine(element.Name);
        }
    }
}

Result

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