everything/ProjecThing/Pages/FleetIssues/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 ProjecThing.Data;
using ProjecThing.Models;
using ProjecThing.Models.Vehicle;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Authorization;

namespace ProjecThing.Pages.FleetIssues
{
    [Authorize]
    public class CreateModel : PageModel
    {
        private readonly ApplicationDbContext _context;
        private readonly UserManager<IdentityApplicationUser> _userManager;

        public CreateModel(ApplicationDbContext context, UserManager<IdentityApplicationUser> userManager)
        {
            _context = context;
            _userManager = userManager;
        }

        [BindProperty]
        public VehicleIssue Issue { get; set; }

        public IActionResult OnGetModal()
        {
            ViewData["IdEmployeeFk"] = new SelectList(_context.CodeTableEmployees, "IdEmployee", "BankAccount");
            ViewData["IdVehicleFk"] = new SelectList(_context.Set<Models.Vehicle.Vehicle>(), "IdVehicle", "RegistrationNumber");

            return Partial("CreateModal");
        }

        public async Task<IActionResult> OnPostModalAsync()
        {
            //if (!ModelState.IsValid)
            //{
            //    return Partial("CreateModal");
            //}

            var aa = _userManager.GetUserAsync(User);

            _context.VehicleIssues.Add(Issue);
            await _context.SaveChangesAsync();

            return Partial("CreateModal");
        }

        public IActionResult OnGet()
        {
            ViewData["IdEmployeeFk"] = new SelectList(_context.CodeTableEmployees, "IdEmployee", "BankAccount");
            ViewData["IdVehicleFk"] = new SelectList(_context.Set<Models.Vehicle.Vehicle>(), "IdVehicle", "RegistrationNumber");

            return Page();
        }

        public async Task<IActionResult> OnPostAsync()
        {
            if (!ModelState.IsValid)
            {
                return Page();
            }

            _context.VehicleIssues.Add(Issue);
            await _context.SaveChangesAsync();

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