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Destinationspublic DbSet<Destination> Destinations { get; set; }//表Lodgingspublic DbSet<Lodging> Lodgings { get; set; }} }

 

转载于:https://www.cnblogs.com/chengdexy/p/5653863.html

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