Pro Aspnet MVC 4读书笔记(2) - The MVC Pattern

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace MvcPattern.Models
{
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 Item()
{
Bids = new List<Bid>();
}

public void AddBid(Member member, Decimal amount)
{
if (Bids.Count == 0 || amount > Bids.Max(e => e.BidAmount))
{
Bids.Add(new Bid()
{
BidAmount = amount,
DatePlaced = DateTime.Now,
Member = member
});
}
else
{
throw new InvalidOperationException("Bid amount too low");
}
}
}
}