无法从 ASP.NET Core 2.1 控制器获取 IdentityUser 数据

Question

我正在 ASP.NET Core 2.1 中开发应用程序。我正在将 Identity 与内置用户帐户一起使用。现在我正试图在这个应用程序中开发一个用户维护模块，我被卡住了。我无法获取控制器内的数据。这是我的代码：

ApplicationDbContext.cs：

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

    public DbSet<ApplicationUser> ApplicationUsers { get; set; }

}

启动.cs：

public void ConfigureServices(IServiceCollection services)
    {
        services.Configure<CookiePolicyOptions>(options =>
        {
            // This lambda determines whether user consent for non-essential cookies is needed for a given request.
            options.CheckConsentNeeded = context => true;
            options.MinimumSameSitePolicy = SameSiteMode.None;
        });

        services.AddDbContext<ApplicationDbContext>(options =>
            options.UseSqlServer(
                Configuration.GetConnectionString("DefaultConnection")));
        services.AddIdentity<IdentityUser,IdentityRole>(config => {
            config.SignIn.RequireConfirmedEmail = true;
        })
        .AddEntityFrameworkStores<ApplicationDbContext>()
        .AddDefaultUI()
        .AddDefaultTokenProviders();

        services.AddMemoryCache();
        services.AddSession();

        services.AddMvc()
            .SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
            .AddSessionStateTempDataProvider();

        services.AddSingleton<IEmailSender, EmailSender>();
    }

应用程序用户.cs：

public class ApplicationUser : IdentityUser
{
    [Required]
    public string FirstName { get; set; }

    [Required]
    public string Name { get; set; }
}

索引.cshtml：

@model IEnumerable<TestIdentity.Models.ApplicationUser>
@{
    ViewData["Title"] = "Index";
}
<h2>Application users</h2>
@foreach (var item in Model)
{
    <p>@item.Name</p>
}

ApplicationUsersController.cs: :

public class ApplicationUsersController : Controller
{
    private readonly ApplicationDbContext _context;

    public ApplicationUsersController(ApplicationDbContext context)
    {
        _context = context;
    }

    // GET: Administrator/ApplicationUsers
    public async Task<IActionResult> Index()
    {
        return View(await _context.ApplicationUsers.ToListAsync());
    }
}

_context.ApplicationUsers.ToListAsync() 没有返回任何结果，尽管我的 AspNetUsers 表中有数据。

Answer 1

如果您想ApplicationUser为您的 Identity使用 custom而不是 default IdentityUser。您需要在声明模型后进行一些更改。

1.在dbContext中：

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>

2.在startup.cs中：

services.AddIdentity<ApplicationUser,IdentityRole>(config => {
        config.SignIn.RequireConfirmedEmail = true;
    })
...

3.在你的/Shared/_LoginPartial.cshtml

@inject SignInManager<ApplicationUser> SignInManager
@inject UserManager<ApplicationUser> UserManager