public async Task <IActionResult> Edit(int id, [Bind("Customer,IBAN,Birth_date,sex")] Boeker boeker)
        {
            if (id != boeker.Customer)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(boeker);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!BoekerExists(boeker.Customer))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(boeker));
        }
        public async Task <IActionResult> RegisterBoeker(RegisterBoekerViewModel model)
        {
            if (signInManager.IsSignedIn(User))
            {
                if (ModelState.IsValid)
                {
                    var customerAssociated = (from c in _context.Customer
                                              where c.Username == model.Email
                                              select c).FirstOrDefault();


                    var boeker = new Boeker
                    {
                        Customer   = customerAssociated.Id,
                        IBAN       = model.IBAN,
                        Birth_date = model.Birth_date,
                        sex        = model.Sex
                    };
                    _context.Add(boeker);
                    await _context.SaveChangesAsync();

                    return(RedirectToAction("Index", "Home"));
                }
            }
            else
            {
                return(View("Login", "Home"));
            }
            return(View(model));
        }
        public async Task <IActionResult> Create([Bind("Customer,IBAN,Birth_date,sex")] Boeker boeker)
        {
            if (ModelState.IsValid)
            {
                _context.Add(boeker);
                await _context.SaveChangesAsync();

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