Csharp/C Sharp/XML LINQ/Children

Accessing an Element"s Child Elements Using the Elements Method

<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 XComment("This is a new author."),
        new XProcessingInstruction("AuthorHandler", "new"),
        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"))));
       foreach (XNode node in firstParticipant.Elements()) {
           Console.WriteLine(node);
       }
   }

}

</source>

Accessing Named Child Elements Using the Elements Method

<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 XComment("a new author."),
      new XProcessingInstruction("AuthorHandler", "new"),
      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"))));
       foreach (XNode node in firstParticipant.Elements("FirstName")) {
           Console.WriteLine(node);
       }
   }

}

</source>

Accessing the First Child Element with a Specified Name

<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 XComment("This is a new author."),
       new XProcessingInstruction("AuthorHandler", "new"),
       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.Element("FirstName"));
   }

}

</source>

FirstNode and LastNode give you direct access to the first or last child node

<source lang="csharp"> using System; using System.Collections.Generic; using System.Linq; using System.Xml.Linq; public class MainClass {

   public static void Main() {
       var bench = new XElement("bench",
                     new XElement("t",
                       new XElement("B", "H"),
                       new XElement("A", "R")
                     ),
                     new XElement("t",
                       new XElement("B", "S"),
                       new XElement("A", "N")
                     ),
                     new XComment("This is the comment")
                   );
       foreach (XNode node in bench.Nodes())
           Console.WriteLine(node.ToString(SaveOptions.DisableFormatting) + ".");
   }

}

</source>