Csharp/C Sharp/XML LINQ/Nodes

Calling the Only Nodes Prototype

<source lang="csharp"> 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 XElement("Books",
          new XElement("Book",
           new XAttribute("type", "Author"),
          new XComment("This is a new author."),
           new XElement("FirstName", "A"),
          new XElement("LastName", "B")),
          new XElement("Book",
           new XAttribute("type", "Author"),
          new XElement("FirstName", "C"),
          new XElement("LastName", "D"))));
       IEnumerable<XElement> elements = xDocument.Element("Books").Elements("Book");
       foreach (XElement element in elements) {
           Console.WriteLine("Source element: {0} : value = {1}", element.Name, element.Value);
       }
       foreach (XNode node in elements.Nodes()) {
           Console.WriteLine("Child node: {0}", node);
       }
   }

}

</source>

Traversing Backward from an XElement Object via the PreviousNode Property

<source lang="csharp"> 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 XDeclaration("1.0", "UTF-8", "yes"),
        new XDocumentType("Books", null, "Books.dtd", null),
        new XProcessingInstruction("Book", "out-of-print"),
        new XElement("Books", firstParticipant =
         new XElement("Book",
        new XAttribute("type", "Author"),
        new XElement("FirstName", "J"),
        new XElement("LastName", "R")),
        new XElement("Book",
        new XAttribute("type", "Author"),
        new XElement("FirstName", "E"),
        new XElement("LastName", "B"))));
       Console.WriteLine(firstParticipant.NextNode.PreviousNode);
   }

}

</source>