这样才可以进行复制context.Lodgings.Add(clone);//复制,这里传入的就不是DbPropertyValues 的实例context.Entry(clone).CurrentValues.SetValues(davesDump);//修改名称clone.Name ="Dave's
通过Dbcontext的OnModelCreating来对模型进行配置。 protectedoverridevoidOnModelCreating(DbModelBuilder modelBuilder) { modelBuilder.Entity<AnimalType>().ToTable("Animal"); modelBuilder.Entity<AnimalType>().Property(p =>p.TypeName).IsRequired(); } 这样得到同样的效果。开发者一般倾向于使用API的方式来约定...
Programming Entity Framework 作者:Julia Lerman/Rowan Miller 出版社:O'Reilly Media 副标题:DbContext 出版年:2012-3-7 页数:256 定价:USD 24.99 装帧:Paperback ISBN:9781449312961 豆瓣评分 评价人数不足 评价: 写笔记 写书评 加入购书单 分享到 推荐...
我在其他地方找到了一个解决方案，并将其添加到这里，以供购买图书时遇到相同问题的任何人使用。要实现...
Programming Entity Framework: DbContext by Julia Lerman, Rowan Miller Chapter 4. Working with Disconnected Entities Including N-Tier Applications In the previous chapter you learned how to add new entities and change or delete existing entities. All the examples we looked at involved making changes ...
Julia Lerman.Programming Entity Framework:DbContext.. 2012LERMAN Julia,MILLER Rowan.Programming entity framework:Db Context.. 2012LERMAN J, MILLER R. Programming entity framework: Db- Context[ M ]. O' reilly Media,2012.LERMAN, Julia; MILLER, Rowan. Programming Entity Framework: DbContext. 1. ...
Entity Framework Core Welcome! What's new in EF Core 8.0 Breaking changes in EF Core 8.0 The plan for EF Core 9.0 Getting started Releases and planning (roadmap) DbContext configuration and initialization Create a model Manage database schemas Query data Save data Change tracking Logging, events...
The downloads samples are available for Programming Entity Framework: Code FIrst on the downloads page of this website. Rowan and I are busy working on the next book (Programming Entity Framework: DbContext API) right now. Hopefully it will go into production in the next week or two... ...
MSDN Magazine: Data Points - Entity Framework Preview: code first, ObjectSet and DbContext MSDN Magazine: Editor's Note - A Few of My Favorite App Things MSDN Magazine: Bing Map Apps - Building a Real-Time Transit Application Using the Bing Map App SDK...
using {Namespace}.Data.Domain; using Microsoft.AspNetCore.Identity.EntityFrameworkCore; using Microsoft.EntityFrameworkCore; namespace {Namespace}.Data { public class ApplicationDbContext : IdentityDbContext { public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options) { ...