相关疑难解决方法(0)

我正在尝试为用户管理管理页面提取所有Identity用户及其相关角色.我认为这相当容易,但显然不是.我尝试过以下解决方案:https://stackoverflow.com/a/43562544/5392786但到目前为止还没有解决.

这是我到目前为止:

ApplicationUser:

public class ApplicationUser : IdentityUser
{
    public List<IdentityUserRole<string>> Roles { get; set; }
}

的DbContext

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

启动标识代码

services.AddIdentity<ApplicationUser, IdentityRole>(options => options.Stores.MaxLengthForKeys = 128)
            .AddEntityFrameworkStores<ApplicationDbContext>()
            .AddDefaultTokenProviders();

我想要显示列表的Razor Page:

public class IndexModel : PageModel
{
    private readonly UserManager<ApplicationUser> userManager;

    public IndexModel(UserManager<ApplicationUser> userManager)
    {
        this.userManager = userManager;
    }

    public IEnumerable<ApplicationUser> Users { get; set; }

    public void OnGetAsync()
    {
        this.Users = userManager.Users.Include(u => …