public async Task <IActionResult> Edit(int id, Birder birder)
        {
            if (id != birder.BirderId)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(birder);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!BirderExists(birder.BirderId))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(birder));
        }
        public async Task <IActionResult> Create(Birder birder)
        {
            if (ModelState.IsValid)
            {
                var userId = this.User.FindFirstValue(ClaimTypes.NameIdentifier);
                birder.IdentityUserId = userId;
                _context.Add(birder);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }

            ViewData["IdentityUserId"] = new SelectList(_context.Users, "Id", "Id", birder.IdentityUserId);
            return(View(birder));
        }