everything/EveryThing/Pages/AdministrationUsers/Index.cshtml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using EveryThing.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;

namespace EveryThing.Pages.AdministrationUsers
{
    [Authorize(Roles = "Administrator")]
    public class IndexModel : PageModel
    {
        private readonly Data.ApplicationDbContext _context;
        private readonly UserManager<IdentityApplicationUser> _userManager;

        public IndexModel(Data.ApplicationDbContext context, UserManager<IdentityApplicationUser> userManager)
        {
            _context = context;
            _userManager = userManager;
        }
        
        public new IList<IdentityApplicationUser> User { get; set; }

        public async Task OnGetAsync()
        {
            User = await _userManager.Users.ToListAsync();
        }

        public IActionResult OnGetFrame()
        {
            User = _userManager.Users.ToList();

            return Partial("IndexFrame");
        }
    }
}