ASP.. NET MVC用户标识外键

本文关键字：用户标识 MVC NET ASP | 更新日期: 2023-09-27 17:49:35

我已经阅读了所有的stackoverflow，但无法管理我的错误:

 public class Album
  {
    public int AlbumId { get; set; }
    public String Name { get; set; }
    public String Description { get; set; }
    public virtual ApplicationUser User { get; set; }
  }
  public class ApplicationUser : IdentityUser
    {
    public virtual ICollection<Album> Albums { get; set; }
    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
    {
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        return userIdentity;
    }
}
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public DbSet<Album> Albums { get; set; }
    public ApplicationDbContext()
        : base("DefaultConnection", throwIfV1Schema: false)
    {
        Configuration.LazyLoadingEnabled = true;
        Configuration.ProxyCreationEnabled = false;
        Database.SetInitializer<ApplicationDbContext>(new CreateDatabaseIfNotExists<ApplicationDbContext>());
    }
    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
    }
}

,得到:

在模型生成过程中检测到一个或多个验证错误:

photoManager.Models.IdentityUserLogin: : EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType.
photoManager.Models.IdentityUserRole: : EntityType 'IdentityUserRole' has no key defined. Define the key for this EntityType.
IdentityUserLogins: EntityType: EntitySet 'IdentityUserLogins' is based on type 'IdentityUserLogin' that has no keys defined.
IdentityUserRoles: EntityType: EntitySet 'IdentityUserRoles' is based on type 'IdentityUserRole' that has no keys defined.

我卡住了!所以请帮忙。怎么了?

ASP.. NET MVC用户标识外键

有两点需要注意

  1. 检查您正在使用的DbContext。有可能你可以有多个上下文而你使用的上下文还没有正确初始化

  2. 尝试更新OnModelCreating:

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
    modelBuilder.Entity<IdentityUserLogin>().HasKey<string>(l => l.UserId);
    modelBuilder.Entity<IdentityRole>().HasKey<string>(r => r.Id);
    modelBuilder.Entity<IdentityUserRole>().HasKey(r => new { r.RoleId, r.UserId });
}

如果您还没有

，您可以参考以下内容。

1。修改DbContext

2。改变ModelBinding

3。改变ModelBinding(复杂的)

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