using System;

using System.IO;

using System.Xml;

using System.Xml.Serialization;

​

public class Program

{

    public static void Main(string[] args)

    {

        var p = new clsPerson

        {

            FirstName = "Jeff",

            MI = "J",

            LastName = "Jefefrson",

            Addresses = new clsPlaces

            {

                Home = "Here",

                Work = "There"

            }

        };

​

        var serializer = new XmlSerializer(typeof(clsPerson));

        var settings = new XmlWriterSettings

        {

            Indent = true,

            OmitXmlDeclaration = true

        };

        using (var sw = new StringWriter())

        using (var xw = XmlWriter.Create(sw, settings))

        {

            serializer.Serialize(xw, p, new XmlSerializerNamespaces(new[] {       XmlQualifiedName.Empty }));

            Console.WriteLine(sw.ToString());

        }

    }

}

​

public class clsPerson

{

    public string FirstName;

    public string MI;

    public string LastName;

​

    [XmlElement(Namespace = "www.whatever.co.uk")]

    public clsPlaces Addresses;

}

​

public class clsPlaces

{

    public string Home { get; set; }

    public string Work { get; set; }

}