public async Task<IActionResult> Edit(int id, [Bind("Id,Name")] Department department)
        {
            if (id != department.Id)
            {
                return NotFound();
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(department);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!DepartmentExists(department.Id))
                    {
                        return NotFound();
                    }
                    else
                    {
                        throw;
                    }
                }
                return RedirectToAction(nameof(Index));
            }
            return View(department);
        }
        public void Update(Seller seller)
        {
            if (!_context.Seller.Any(x => x.Id == seller.Id))
            {
                throw new NotFoundException("Id not found");
            }

            try
            {
                _context.Update(seller);
                _context.SaveChanges();
            }
            catch (DbUpdateConcurrencyException e)
            {
                throw new DBConcurrencyException(e.Message);
            }
        }