如何在Blazor服务器端Web应用程序中扩展IdentityUser

从历史上看，当我想在AspNetUsers表上添加一列或多列时，我遵循的工作流程如下：

1.创建一个ApplicationUser类，从中继承IdentityUser。

2.将新属性添加到应用程序用户类

3：更新applicationDbContext以从中继承：IdentityDbContext

4：在启动代码中更改对IdentityUser的任何引用，例如：Startup.cs / Global等

5：Add-Migration MigrationName

6：更新数据库

这将为新列生成Up / Down脚本，并将该列添加到我的数据库中。

但是，我已经启动了一个新的Blazor服务器端Web应用程序，并执行了上述步骤，但无济于事。

谁能看到我在这里缺少的东西吗？我过去做过如此多次，以至于我发现自己错过了一些东西很奇怪，但是一切皆有可能。希望有人可以提供帮助，请参阅下面有关为实现此目的而更改的代码。

应用程序数据库上下文代码：

namespace ExtendingBlazorIdentity.Data
{
    public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
    {
        public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
            : base(options)
        {
        }

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

应用程序用户类别：

namespace ExtendingBlazorIdentity.Data
{
    public  class ApplicationUser : IdentityUser
    {
        string NickName { get; set; }
    }
}

启动文件

  namespace ExtendingBlazorIdentity
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(
                    Configuration.GetConnectionString("DefaultConnection")));
            services.AddDefaultIdentity<ApplicationUser>(options => options.SignIn.RequireConfirmedAccount = true)
                .AddEntityFrameworkStores<ApplicationDbContext>();
            services.AddRazorPages();
            services.AddServerSideBlazor();
            services.AddScoped<AuthenticationStateProvider, RevalidatingIdentityAuthenticationStateProvider<ApplicationUser>>();
            services.AddDatabaseDeveloperPageExceptionFilter();
            services.AddSingleton<WeatherForecastService>();
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseMigrationsEndPoint();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseRouting();

            app.UseAuthentication();
            app.UseAuthorization();

            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
                endpoints.MapBlazorHub();
                endpoints.MapFallbackToPage("/_Host");
            });
        }
    }
}