everything/EveryThing/Pages/AdministrationCompanies/Create.cshtml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.AspNetCore.Mvc.Rendering;
using EveryThing.Data;
using EveryThing.Models;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Logging;
using EveryThing.Models.CodeTable;

namespace EveryThing.Pages.AdministrationCompanies
{
    [Authorize(Roles = "Administrator")]
    public class CreateModel : PageModel
    {
        private readonly ApplicationDbContext _context;

        public CreateModel(ApplicationDbContext context)
        {
            _context = context;
        }

        [BindProperty]
        public CodeTableCompany Company { get; set; }

        public IActionResult OnGet()
        {
            ViewData["IdCountryFk"] = new SelectList(_context.CodeTableCountries, "IdCountry", "Title");

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            if (!ModelState.IsValid)
            {
                ViewData["IdCountryFk"] = new SelectList(_context.CodeTableCountries, "IdCountry", "Title");

                return Page();
            }
            Company.Active = true;
            _context.CodeTableCompanies.Add(Company);
            await _context.SaveChangesAsync();

            return RedirectToPage("./Index");
        }
    }
}