CSharp - Obtaining Restricted Elements Without Reaching While Ordering and Using Query Expression Syntax

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Introduction

In the following example, we query for the document's Book elements but retrieve only the ones whose type attribute is not Illustrator.

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 .c om*/
{
    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 =
                from e in xDocument.Descendants("Book")
                where ((string)e.Attribute("type")) != "Illustrator"
                orderby ((string)e.Element("LastName"))
                select e;
        
              foreach (XElement element in elements)
              {
                Console.WriteLine("Element: {0} : value = {1}",
                  element.Name, element.Value);
              }
    }
}

Result

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