public IActionResult Gameplay([FromForm] int questionId, [FromForm] List <GivedAnswer> givedAnswerList) { GameplayViewModel vmodel = new GameplayViewModel(); if (givedAnswerList != null) { if (_questionManager.IsItGoodAnswers(givedAnswerList)) { int?point; point = HttpContext.Session.GetInt32(SessionKeyPoints); point += _questionManager.GetPoint(questionId); HttpContext.Session.SetInt32(SessionKeyPoints, point ?? 0); vmodel.Points = point ?? 0; } else { vmodel.Points = HttpContext.Session.GetInt32(SessionKeyPoints) ?? 0; } foreach (var item in givedAnswerList) { _questionManager.AddGivedAnswer(item); } } else { BadRequest(); } string sessissonKeyIds = HttpContext.Session.GetString(SessionKeyIds); if (sessissonKeyIds == null || sessissonKeyIds.Equals("")) { ViewData["point"] = vmodel.Points; int?sessionsss = HttpContext.Session.GetInt32(SessionKeySession); _questionManager.AddPoint( _questionManager.GetSessionById(HttpContext.Session.GetInt32(SessionKeySession) ?? 0), vmodel.Points ); return(View("EndQuiz")); } string[] splitedIds = sessissonKeyIds.Split(' '); int queryId = Int32.Parse(splitedIds[0]); string ids = ConcatenateIds(splitedIds); HttpContext.Session.SetString(SessionKeyIds, ids); ViewData["theme"] = _questionManager.GetThemeNameByQuestionId(queryId); return(View("Gameplay", new GameplayViewModel() { Question = _questionManager.GetQuestionById(queryId), Ids = ids, SessionId = HttpContext.Session.GetInt32(SessionKeySession) ?? 0, Points = vmodel.Points })); }