/// <summary>
/// IAction method for returning a view of an exam
/// </summary>
/// <param name="id">Id for a exam</param>
/// <returns></returns>
public IActionResult ViewExam(int id)
{
var exam = context.ReadExam(id);
var vm = new ViewExamViewModel()
{
Exam = exam
};
var responses = new Dictionary <int, List <QuestionResponse> >();
foreach (var item in exam.Student.StudentCourses)
{
responses.Add(item.Course.Id, context.ReadResponsesByCourse(item.Course.Id, exam.Id));
}
vm.Responses = responses;
return(View(vm));
}