实体框架（代码优先）

本文介绍了实体框架（代码优先） - 动态构建模型的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有我的课域的集会 - Domains.dll。我动态添加到组装我的DbContext Dbset加载类

I have an assembly with classes my domains - "Domains.dll". I dynamically add to my DbContext Dbset load classes of assembly.

public class MyContext : DbContext { public MyContext() : base("DBConnection"){} protected override void OnModelCreating(DbModelBuilder modelBuilder) { Assembly assembly = Assembly.LoadFrom("Domains.dll"); var entityMethod = typeof(DbModelBuilder).GetMethod("Entity"); var list = assembly.GetTypes().OrderBy(i => i.GetType().Name); foreach (Type item in list) { entityMethod.MakeGenericMethod(item) .Invoke(modelBuilder, new object[] { }); } } }

接下来，我创建数据库

Next, I create DataBase

context.Database.Create();

这工作，但与我的域名的一个问题。我对父实体

This works but with a problem for my domain. I have a class for the parent entity

public abstract class Entity { [Key] [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)] public int Id { get; set; } } public class Person : Entity { public string FirstName {get ;set;} public string LastName {get ;set;} }

如果现在我运行一个数据库 - 表'人'是不是create.It创建一个表'实体'有场标识，名字，姓氏。

If now I run a database - table 'Person' is not create.It creates a table 'Entities' with fields Id, FirstName, LastName.

如果我改变人

public class Person { public int Id {get; set;} public string FirstName {get ;set;} public string LastName {get ;set;} }

那么数据库的两个表中创建 - '人'和'实体'。如何使用继承？我该怎么做是正确的？

then created in the database two tables - 'Person' and 'Entities'. How do I use inheritance? How do I do it right?

推荐答案

尝试使用 [表（人）] 属性，我鼓励你看看那的与EF代码优先继承，这是一个不错的职位。

Try using [Table("Person")] Attribute, and I encourage you to take a look at that Inheritance with EF Code First, It is a good post.

所以要恢复试试这个：

public abstract class Entity { [Key] [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)] public int Id { get; set; } } [Table("Person")] public class Person : Entity { public string FirstName {get ;set;} public string LastName {get ;set;} }