public async Task <IActionResult> DeleteQuestion(int chapterId, int questionId) { var question = await _context.Set <Question>().FindAsync(questionId); if (question != null) { _context.Remove(question); await _context.SaveChangesAsync(); } var questions = await _context.Set <Question>().Where(x => x.ChapterId == chapterId).ToListAsync(); questions.Add(new Question()); return(Ok(questions)); }