using System.Xml;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main( string[] args )
        {
            var doc = new XmlDocument();
            // Load xml document.
            TraverseNodes( doc.ChildNodes );
        }

        private static void TraverseNodes( XmlNodeList nodes )
        {
            foreach( XmlNode node in nodes )
            {
                // Do something with the node.
                TraverseNodes( node.ChildNodes );
            }
        }
    }
}