public async Task <IActionResult> Edit(int id, [Bind("ID,Kategoria,Nev,Ar,Allergen,Leiras,Kedvezmeny")] Etlap etlap)
        {
            var user = await _userManager.GetUserAsync(HttpContext.User);

            if (id != etlap.ID)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    etlap.IdentityUser = user;
                    int    ujar    = etlap.Ar;
                    double merteke = 0;
                    if (etlap.Kedvezmeny != null)
                    {
                        var valami = Convert.ToDouble(etlap.Kedvezmeny);
                        merteke = etlap.Ar * (valami / 100);
                    }
                    etlap.Ar = ujar - Convert.ToInt32(merteke);
                    _context.Add(etlap);
                    _context.Update(etlap);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!EtlapExists(etlap.ID))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(etlap));
        }
        public async Task <IActionResult> Create([Bind("ID,Kategoria,Nev,Ar,Allergen,Leiras,Kedvezmeny")] Etlap etlap)
        {
            var user = await _userManager.GetUserAsync(HttpContext.User);

            if (ModelState.IsValid)
            {
                etlap.IdentityUser = user;
                int    ujar    = etlap.Ar;
                double merteke = 0;
                if (etlap.Kedvezmeny != null)
                {
                    var valami = Convert.ToDouble(etlap.Kedvezmeny);
                    merteke = etlap.Ar * (valami / 100);
                }
                etlap.Ar = ujar - Convert.ToInt32(merteke);
                _context.Add(etlap);
                await _context.SaveChangesAsync();

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