No service while customize a new User Context Identity

No service while customize a new User Context Identity

By : user2185666
Date : November 22 2020, 04:01 AM
this one helps. The error message suggests that it is attempting to resolve UserManager, while the user manager should actually use the user entity as its generic type argument. So the type should instead be UserManager.
For the developer-facing services like UserManager, RoleManager or SignInManager you will usually have to use the user type as the type argument, so make sure that you haven’t mixed up the user entity type with the database context type somewhere.
code :

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Context.User.Identity.Name vs HttpContext.Current.User.Identity.Name

Context.User.Identity.Name vs HttpContext.Current.User.Identity.Name

By : user3211634
Date : March 29 2020, 07:55 AM
like below fixes the issue They are identical. Context has a reference to the current HttpContext which is the same as HttpContext.Current. So, I don't think this is causing the problem that you are having.
Customize @User.Identity.NewMethodHere() to return a user first and last name, using ef code first and asp.net mvc

Customize @User.Identity.NewMethodHere() to return a user first and last name, using ef code first and asp.net mvc

By : Lordan
Date : March 29 2020, 07:55 AM
seems to work fine to wdosanjos for pointing me to extenstion method. After reading the link and googling some more I came up with this:
code :
public static class IdentityApplicationUserExtension
    public static User GetApplicationUser(this IIdentity identity)
        var manager = new UserManager<User>(new UserStore<User>(new MyDbContext()));
        return manager.FindById<User>(identity.GetUserId());
Why Context.User.Identity.Name is null in Windows Form Hub Context?

Why Context.User.Identity.Name is null in Windows Form Hub Context?

By : ram
Date : March 29 2020, 07:55 AM
To fix the issue you can do It looks like you are trying to get the username when connecting to the hub. I solved a similar issue by passing the username from my client. It also sounds like you are making use of the SignalR .NET client. Give this a try
code :
Connection = new HubConnection("http://.../", new Dictionary<string, string>
    { "UserName", WindowsIdentity.GetCurrent().Name }
public override Task OnConnected()
    string userName = Context.QueryString["UserName"]
Asp.Net Core Identity 2.2 and Identity Server 4, Changing User Id type results in an error in the db context

Asp.Net Core Identity 2.2 and Identity Server 4, Changing User Id type results in an error in the db context

By : silentblood
Date : March 29 2020, 07:55 AM
Hope that helps After got this code sample to run successfully, I tried to change the Identity User Id type to Guid: , You can try below steps :
code :
public class AppUser : IdentityUser<Guid>
    // Add additional profile data for application users by adding properties to this class
    public string Name { get; set; }        
public class AppIdentityDbContext : IdentityDbContext<AppUser, IdentityRole<Guid>, Guid>
services.AddIdentity<AppUser, IdentityRole<Guid>>()
ASP.NET Core 3: Cannot resolve scoped service 'Microsoft.AspNetCore.Identity.UserManager`1[Alpha.Models.Identity.User]'

ASP.NET Core 3: Cannot resolve scoped service 'Microsoft.AspNetCore.Identity.UserManager`1[Alpha.Models.Identity.User]'

By : Stegow
Date : March 29 2020, 07:55 AM
To fix this issue From the screenshot you've included, it shows that you've got the following line in Startup.Configure:
code :
ApplicationDbContext.CreateAdminAccount(app.ApplicationServices, Configuration)
public void Configure(IApplicationBuilder app, IServiceProvider serviceProvider)
    ApplicationDbContext.CreateAdminAccount(serviceProvider, Configuration)
public class Program
    public static async Task Main(string[] args)
        var host = CreateHostBuilder(args).Build();

        using (var scope = host.Services.CreateScope())
            var serviceProvider = scope.ServiceProvider;
            var config = serviceProvider.GetRequiredService<IConfiguration>();

            await ApplicationDbContext.CreateAdminAccount(serviceProvider, config);

        await host.RunAsync();

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        // ...
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