Simple and flexible way to access and store configuration settings

using System;
using System.Linq;
using i3Quest.Configuration.Core;

namespace i3Quest.Configuration
{
	public class Person : IConfigurationElement
	{
		public string FirstName { get; set; }
		public string LastName { get; set; }
		public DateTime DateOfBirth { get; set; }
		public PostalAddress MailingAddress { get; set; }

		public void WriteConfiguration(IConfigurationContext context)
		{
			context["FirstName"] = FirstName;
			context["LastName"] = LastName;
			context["DateOfBirth"] = DateOfBirth.ToShortDateString();
			if (MailingAddress != null)
			{
				// get existing or create new context
				var ctx = context.Get("MailingAddress", true).First();
				MailingAddress.WriteConfiguration(ctx);
			}
		}

		public void ReadConfiguration(IConfigurationContext context)
		{
			FirstName = context["FirstName"];
			LastName = context["LastName"];
			DateTime dt;
			DateTime.TryParse(context["DateOfBirth"], out dt);
			DateOfBirth = dt;
			var ctx = context.Get("MailingAddress", false).FirstOrDefault();
			if (ctx != null)
			{
				MailingAddress = new PostalAddress();
				MailingAddress.ReadConfiguration(ctx);
			}
		}

	}
}