XML C#

using System;
using System.IO;
using System.Xml;
public class Sample
{
  public static void Main()
  {
     XmlTextWriter writer = new XmlTextWriter (Console.Out);
     writer.Formatting = Formatting.Indented;
     writer.WriteStartElement("Items");
     writer.WriteStartElement("Item");
     writer.WriteString("Write unescaped text:  ");
     writer.WriteRaw("this & that");
     writer.WriteEndElement();
     writer.WriteStartElement("Item");
     writer.WriteString("Write the same string using WriteString:  ");
     writer.WriteString("this & that");
     writer.WriteEndElement();
     writer.WriteEndElement();
     writer.Close();  
  }
}