public async Task <IActionResult> Edit(int id, BlankNum blankNum)
        {
            if (id != blankNum.BlankNumId)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(blankNum);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!BlankNumExists(blankNum.BlankNumId))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            var EduNapravls = _context.EduNapravls
                              .Include(n => n.EduUgs)
                              .ThenInclude(ugs => ugs.EduLevel);

            ViewData["EduNapravlId"] = new SelectList(EduNapravls, "EduNapravlId", "GetEduNapravlFullName");
            return(View());
        }
        public async Task <IActionResult> Create(BlankNum blankNum)
        {
            if (ModelState.IsValid)
            {
                _context.Add(blankNum);
                await _context.SaveChangesAsync();

                return(RedirectToAction(nameof(Index)));
            }
            var EduNapravls = _context.EduNapravls
                              .Include(n => n.EduUgs)
                              .ThenInclude(ugs => ugs.EduLevel);

            ViewData["EduNapravlId"] = new SelectList(EduNapravls, "EduNapravlId", "GetEduNapravlFullName");
            return(View(blankNum));
        }