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

如果我向 App、Team Device 等添加属性，我可以添加迁移并更新数据库就好了。

例子：

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 AppUser 类中做同样的事情：

        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：

访问 Microsoft.Extensions.Hosting 服务时出错。在没有应用程序服务提供商的情况下继续。

错误：出现一个或多个错误。 （列名“ABD”无效。）

我做错了什么？

Answer 1

好的，所以我发现了问题。

我的Startup.cs 中有一个SeedUsers 方法，因为add-migration 首先运行整个项目，所以由于未迁移的数据库和我的新代码不匹配，它遇到了异常。

我刚刚注释掉了对SeedUsers 的调用，它起作用了。

感谢您的帮助。