It would be nice to capture the user name of the user during registration, for use throughout our blog application. AspNetUser already has a Username field, so we'll use that.

The scaffolded Identity views are are contained within a .NET Standard Razor Class Library (RCL), so we need to extract the UI items out to .cshtml files to modify for our new field(s). We can run "dotnet aspnet-codegenerator identity --listFiles" to find out our --files options, then run this:

Under Areas\Identity\Pages we now have _ViewImports.cshtml, and \Account and \Account\Manage files:

So now we can extend our IdentityUser class, MvcBlogUser:

Add a migration, update the database:

Update Areas\Identity\Pages\Account\Register.cshtml:

Update InputModel in Register.cshtml.cs:

Update OnPostAsync in Register.cshtml.cs:

Customize the site header (Views/Shared/_LoginPartial.cshtml):

Customize profile management (Pages/Account/Manage/Index.cshtml):

Customize the InputModel (Pages/Account/Manage/Index.cshtml.cs):

Update LoadAsync:

Update OnPostAsync:

Now we see our name field on the Registration Screen and at the top of the page when we log in: