ASP.NET Core Razor pages web app: in the OnPost the request has data in the Items list but in the OnGet the list is empty

What am I doing wrong?

ASP.NET Core Razor pages web app: in the OnPost the request has data in the Items list but in the OnGet the list is empty

What am I doing wrong?

ASP.NET Core Razor pages web app: in the OnPost the request has data in the Items list but in the OnGet the list is empty

What am I doing wrong?

ASP.NET Core Razor pages web app: in the OnPost the request has data in the Items list but in the OnGet the list is empty

What am I doing wrong?