EntityFramework 学习: Console中初见

using System;
using System.Collections.Generic;
using System.Data.Entity;//在NuGet中获取后,手动引用之

namespace EF_Test
{
    class Program
    {
        static void Main(string[] args)
        {
            var d = DateTime.Now.Date.ToString("yyyyMM");
            var destination = new Destination
            {
                Country = "Indonesia",
                Description = "EcoTourism at its best in exquisite Bali",
                Name = "Bali"
            };

            using (var context = new EF_TestContext())
            {
                context.Destinations.Add(destination);
                context.SaveChanges();
            }

            Console.WriteLine("OK");
            Console.ReadLine();
        }
    }

    //实体类1 ===> 映射为表:Destinations中的记录
    public class Destination
    {
        public int DestinationId { get; set; }
        public string Name { get; set; }
        public string Country { get; set; }
        public string Description { get; set; }
        public byte[] Photo { get; set; }
        public List<Lodging> Lodgings { get; set; }
    }

    //实体类2 ===> 映射为表:Lodgings中的记录
    public class Lodging
    {
        public int LodgingId { get; set; }
        public string Name { get; set; }
        public string Owner { get; set; }
        public bool IsResort { get; set; }
        public Destination Destination { get; set; }
    }

    public class EF_TestContext : DbContext
    {
        //表Destinations
        public DbSet<Destination> Destinations { get; set; }
        //表Lodgings
        public DbSet<Lodging> Lodgings { get; set; }
    }
}