using System; using System.Collections.Generic; namespace TheMVCPattern { class Program { static void Main(string[] args) { Console.WriteLine("Hello World!"); } } public class Member { public string LoginName { get; set; } // The unique key public int ReputationPoints { get; set; } } public class Item { public int ItemID { get; private set; } // The unique key public string Title { get; set; } public string Description { get; set; } public DateTime AuctionEndDate { get; set; } public IList<Bid> Bids { get; set; } } public class Bid { public Member Member { get; set; } public DateTime DatePlaced { get; set; } public decimal BidAmount { get; set; } } }