CSharp - Get the elements by name via Ancestors operator

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Description

Get the elements by name via Ancestors operator

Demo

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

class Program/* www. ja va  2 s  . c o m*/
{
    static void Main(string[] args){
          XDocument xDocument = new XDocument(
            new XElement("Books",
              new XElement("Book",
                new XAttribute("type", "Author"),
                new XElement("FirstName", "Joe"),
                new XElement("LastName", "Ruby")),
              new XElement("Book",
                new XAttribute("type", "Editor"),
                new XElement("FirstName", "PHP"),
                new XElement("LastName", "Python"))));
    
          IEnumerable<XElement> elements =
            xDocument.Element("Books").Descendants("FirstName");
    
          //  First, we will display the source elements.
          foreach (XElement element in elements)
          {
            Console.WriteLine("Source element: {0} : value = {1}",
              element.Name, element.Value);
          }
    
          //  Now, we will display the ancestor elements for each source element.
          foreach (XElement element in elements.Ancestors("Book"))
          {
            Console.WriteLine("Ancestor element: {0}", element.Name);
          }
    }
}

Result

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