各位大大好:
想請教asp net問題，目前使用visual studio 2022，我有在aspnetusers的資料表新增一個MyID的欄位
註冊的時候確實是可以把資料寫進去
但是在讀的時候就是讀不到MyID的欄位，我只能讀到asp他預設的欄位....
以下是程式碼:
ApplicationUser.cs//我新增的欄位

public class ApplicationUser : IdentityUser
{ 
    public string MyId { get; set; }
}

ApplicationDbContext.cs

public class ApplicationDbContext : IdentityDbContext<IdentityUser>
{ >
    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }

    protected override void OnModelCreating(ModelBuilder builder)
    {
       base.OnModelCreating(builder);
        builder.ApplyConfiguration(new ApplicationUserEntityConfiguration());
    }

    private class ApplicationUserEntityConfiguration : IEntityTypeConfiguration<ApplicationUser>
    {
        public void Configure(EntityTypeBuilder<ApplicationUser> builder)
        {
            builder.Property(u=>u.MyId).HasMaxLength(50);
        }
    }
    public DbSet<ApplicationUser>? ApplicationUsers { get; set; }
    
}

MyControl.cs

public class MyController : Controller
    {
        private readonly ApplicationDbContext _context;
        private readonly ApplicationUser _users;
        public EvidencesController(ApplicationDbContext context)
        {
            _context = context;
        }
        public IActionResult Create()
        {
            
            var curUserId=User.FindFirstValue(ClaimTypes.Name);
             var tmp = _context.Users.Where(u => u.UserName == curUserId).FirstOrDefault();
              
              ViewBag.MyId = tmp.MyId;//這裡會錯誤，找不到MyId，可是欄位明明就有新增阿....
            return View();
        }
 
    }
}

謝謝各位