Csharp/C Sharp/XML LINQ/ReplaceAll

Using ReplaceAll to Change an Element"s Subtree

<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 XElement("Books", firstParticipant =
           new XElement("Book",
             new XAttribute("type", "Author"),
             new XElement("FirstName", "J"),
             new XElement("LastName", "R"))));
       Console.WriteLine(xDocument);
       firstParticipant.ReplaceAll(
            new XElement("FirstName", "C"),
            new XElement("LastName", "D"));
       Console.WriteLine(xDocument);
   }

}

</source>