XML C#

using System;
using System.IO;
using System.Text;
using System.Xml;
using System.Xml.Schema;
class XMLSchemaExamples
{
    public static void Main()
    {
        StringBuilder output = new StringBuilder();
        String xmlString =
                @"
                    
                    
                      test with a child element  stuff
                    
";
        using (XmlReader reader = XmlReader.Create(new StringReader(xmlString)))
        {
            XmlWriterSettings ws = new XmlWriterSettings();
            ws.Indent = true;
            using (XmlWriter writer = XmlWriter.Create(output, ws))
            {
                while (reader.Read())
                {
                    switch (reader.NodeType)
                    {
                        case XmlNodeType.Element:
                            writer.WriteStartElement(reader.Name);
                            break;
                        case XmlNodeType.Text:
                            writer.WriteString(reader.Value);
                            break;
                        case XmlNodeType.XmlDeclaration:
                        case XmlNodeType.ProcessingInstruction:
                            writer.WriteProcessingInstruction(reader.Name, reader.Value);
                            break;
                        case XmlNodeType.Comment:
                            writer.WriteComment(reader.Value);
                            break;
                        case XmlNodeType.EndElement:
                            writer.WriteFullEndElement();
                            break;
                    }
                }
            }
        }
        Console.WriteLine(output.ToString());
    }
}