EF Core 中的列名无效

Question

我有一个像这样的 IdentityDbContext：

public class MyIdentityContext : IdentityDbContext<AppUser, AppRole, int>
{
   public DbSet<App> Apps { get; set; }
   public DbSet<Team> Teams { get; set; }
   public DbSet<Avatar> Avatars { get; set; }
   public DbSet<Device> Devices { get; set; }
   public DbSet<Subscription> Subscriptions { get; set; }


   public MyIdentityContext(DbContextOptions<MyIdentityContext> options) : base(options)
   {
   }   // ctor
}   // Cls

如果我将属性添加到应用程序、团队设备等，我可以添加迁移并更新数据库。

示例：

public class Team
{
        public int Id { get; set; }
        public string Name { get; set; }
        public string Description { get; set; }
        public ICollection<AppUser> Members { get; set; }

        public string ABD { get; set; } <--NEW PROPERTY
}    // Cls

但是如果我在我的 AppUser 中做同样的事情 class:

        public class AppUser : IdentityUser<int>
        {
           public string FirstName { get; set; }
           public string LastName { get; set; }

           /// <summary>
           /// What app is this user connected to.
           /// </summary>
           public string ApplicationName { get; set; }

           /// <summary>
           /// Where does the employee work
           /// </summary>
           public string Company { get; set; }

           /// <summary>
           /// What section of the company does the employee work in.
           /// </summary>
           public string Department { get; set; }
     
           /// <summary>
           /// Maximum device this user can use - 0 means unlimited
           /// </summary>
           public int DeviceLimit { get; set; } = 0;

           /// <summary>
           /// This users avatar
           /// </summary>
           public Avatar Avatar { get; set; }

           /// <summary>
           /// Devices connected to this user
           /// </summary>
           public ICollection<Device> Devices { get; set; }

           /// <summary>
           /// Teams that this user is a member of
           /// </summary>
           public ICollection<Team> Teams { get; set; }

           /// <summary>
           /// Apps that this user is subscribed to
           /// </summary>
           public ICollection<Subscription> Subscriptions { get; set; }

           public string ABD { get; set; } <--NEW PROPERTY (causes error)

           public AppUser()
           { }
}    // Cls

我收到以下错误：

An error occurred while accessing the Microsoft.Extensions.Hosting services. Continuing without the application service provider.

Error: One or more errors occurred. (Invalid column name 'ABD'.)

我做错了什么？

Answer 1

好的，所以我想出了问题。

我的 Startup.cs 中有一个 SeedUsers 方法，因为 add-migration 首先运行整个项目，它会遇到异常，因为未迁移的数据库和我的不匹配新代码。

我刚刚注释掉了对 SeedUsers 的调用，它起作用了。

感谢您的帮助。

EF Core 中的列名无效

Invalid column name in EF Core

c#

entity-framework-migrations

entity-framework-core

.net-core