public async Task <IActionResult> EditUniversity(int id, [Bind("Id,UniversityName")] UniversityDetailsModel university)
        {
            if (id != university.Id)
            {
                return(NotFound());
            }

            if (ModelState.IsValid)
            {
                try
                {
                    _db.Update(university); // update Book name
                    await _db.SaveChangesAsync();
                }
                catch (DbUpdateConcurrencyException)
                {
                    if (!UniversityExist(university.Id))
                    {
                        return(NotFound());
                    }
                    else
                    {
                        throw;
                    }
                }
                return(RedirectToAction(nameof(UniversityManagement))); // redirect to index
            }
            return(View(university));
        }
        [HttpPost] //post method
        public async Task <IActionResult> AddUniveristy(UniversityDetailsModel university)
        {
            if (ModelState.IsValid)
            {
                _db.Add(university);                                    //add data to University table
                await _db.SaveChangesAsync();                           //wait for database response

                return(RedirectToAction(nameof(UniversityManagement))); // redirect to index
            }

            return(View(university));
        }