CSharp - Use element name with Descendants operator

Description

Use element name with Descendants operator

Demo

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

class Program//from   ww  w  .j a  v  a 2  s . co m
{
    static void Main(string[] args){
          XDocument xDocument = new XDocument(
            new XElement("Books",
              new XElement("Book",
                new XAttribute("type", "Author"),
                new XComment("This is a new 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").Elements("Book");
    
          //  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 each source element's descendant elements.
          foreach (XElement element in elements.Descendants("LastName"))
          {
            Console.WriteLine("Descendant element: {0}", element);
          }
    }
}

Result

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