public async Task <IActionResult> Edit(int id, [Bind("Id,Name,DepartmentEmail")] 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 async Task <IActionResult> Edit(int id, [Bind("Id,DepartmentId,LecturerId,ModuleId")] Allocation allocation)
        {
            if (id != allocation.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(allocation);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!AllocationExists(allocation.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            ViewData["DepartmentId"] = new SelectList(_context.Set <Department>(), "Id", "Id", allocation.DepartmentId);
            ViewData["LecturerId"]   = new SelectList(_context.Set <Lecturer>(), "Id", "Id", allocation.LecturerId);
            ViewData["ModuleId"]     = new SelectList(_context.Set <Module>(), "Id", "Id", allocation.ModuleId);
            return(View(allocation));
        }
        public async Task <IActionResult> Edit(int id, [Bind("Id,Name,Credits")] Module @module)
        {
            if (id != @module.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _context.Update(@module);
                    await _context.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!ModuleExists(@module.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(Index)));
            }
            return(View(@module));
        }