I am new to ASP.Net Core and have a custom PageModel (MTNCBasePageModel) that inherits from the PageModel abstract class.

using Microsoft.AspNetCore.Mvc.RazorPages;

namespace WebApp.SharedKernal
{
public class MTNCBasePageModel : PageModel
{

    public bool IsAuthenticated = false;
    public bool IsEditor = false;
    public bool IsAdmin = false;

    public MTNCBasePageModel() : base()
    {
        IsAuthenticated = User.Identity.IsAuthenticated;
    }
}

}

When the MTNCBasePageModel constructor is called the User is null.

What am I missing here?