public IActionResult Update(int id)
        {
            ViewBag.Mode = "Edit";
            var questionLink = $"{baseUri}/Question/{id}";
            var question     = WebApiService.GetApiResult <Question>(questionLink);

            var viewModel = new LangFirstQuestionDetailVm()
            {
                Id               = question.Id,
                QuestionTitle    = question.QuestionTitle,
                FileName         = question.FileName,
                AnswerId         = question.Answer.Id,
                Answer           = question.Answer.LangAnswer,
                FirstFeedbackId  = question.Feedback.OfType <Feedback>().ElementAt(0).Id,
                FirstFeedback    = question.Feedback.OfType <Feedback>().ElementAt(0).Description,
                SecondFeedbackId = question.Feedback.OfType <Feedback>().ElementAt(1).Id,
                SecondFeedback   = question.Feedback.OfType <Feedback>().ElementAt(1).Description
            };

            return(View("Detail", viewModel));
        }
        public async Task <IActionResult> Save(LangFirstQuestionDetailVm viewModel, IFormFile picture)
        {
            if (viewModel.Id != 0)
            {
                var categoryLink = $"{baseUri}/QuestionCategory/{2}";
                var category     = WebApiService.GetApiResult <QuestionCategory>(categoryLink);

                var answerLink = $"{baseUri}/Answer/{viewModel.AnswerId}";
                var answer     = new Answer()
                {
                    Id         = viewModel.AnswerId,
                    LangAnswer = viewModel.Answer
                };
                answer = await WebApiService.PutCallApi <Answer, Answer>(answerLink, answer);

                List <Feedback> feedbackList = new List <Feedback>();
                feedbackList.Add(new Feedback()
                {
                    Id = viewModel.FirstFeedbackId, Description = viewModel.FirstFeedback, QuestionId = viewModel.Id
                });
                feedbackList.Add(new Feedback()
                {
                    Id = viewModel.SecondFeedbackId, Description = viewModel.SecondFeedback, QuestionId = viewModel.Id
                });
                var questionLink = $"{baseUri}/Question/{viewModel.Id}";
                var question     = new Question()
                {
                    Id                 = viewModel.Id,
                    QuestionTitle      = viewModel.QuestionTitle,
                    FileName           = _imageServices.UploadImage(picture, "images/LangFirstQuestions"),
                    AnswerId           = answer.Id,
                    Answer             = answer,
                    QuestionCategory   = category,
                    QuestionCategoryId = category.Id,
                    Feedback           = feedbackList
                };
                question = await WebApiService.PutCallApi <Question, Question>(questionLink, question);

                var feedbackLink = $"{baseUri}/Feedback";
                await WebApiService.PutCallApi <Feedback, Feedback>($"{feedbackLink}/{viewModel.FirstFeedbackId}", feedbackList.ElementAt(0));

                await WebApiService.PutCallApi <Feedback, Feedback>($"{feedbackLink}/{viewModel.SecondFeedbackId}", feedbackList.ElementAt(1));

                return(RedirectToAction(nameof(Index)));
            }
            else
            {
                var categoryLink = $"{baseUri}/QuestionCategory/{2}";
                var category     = WebApiService.GetApiResult <QuestionCategory>(categoryLink);

                var answerLink = $"{baseUri}/Answer";
                var answer     = new Answer()
                {
                    LangAnswer = viewModel.Answer
                };
                //var seededAnswer = await WebApiService.PostCallApi<Answer, Answer>(answerLink, answer);
                answer.Id = 0;

                List <Feedback> feedbackList = new List <Feedback>();
                feedbackList.Add(new Feedback()
                {
                    Description = viewModel.FirstFeedback
                });
                feedbackList.Add(new Feedback()
                {
                    Description = viewModel.SecondFeedback
                });
                var questionLink = $"{baseUri}/Question";
                var question     = new Question()
                {
                    QuestionTitle    = viewModel.QuestionTitle,
                    FileName         = _imageServices.UploadImage(picture, "images/LangFirstQuestions"),
                    Answer           = answer,
                    QuestionCategory = category,
                    Feedback         = feedbackList
                };
                await WebApiService.PostCallApi <Question, Question>(questionLink, question);


                return(RedirectToAction(nameof(Index)));
            }
        }