public QuizListVM()
{
dbContext = new QuizDBAccess();
var quizList = dbContext.All().Select(q => new QuizVM(q));
SelectedQuiz = new QuizVM();
Quizes = new ObservableCollection <QuizVM>(quizList);
SaveQuiz = new RelayCommand(AddOrUpdateQuiz, canSave);
DeleteQuiz = new RelayCommand(RemoveQuiz, canRemove);
ClearQuiz = new RelayCommand(ClearSelectedQuiz, canClear);
}
private void AddOrUpdateQuiz(object parameter)
{
if (_quiz.Id != 0) // Update selected quiz
{
dbContext.Update(_quiz.Quiz);
}
else // Add new quiz
{
Quizes.Add(_quiz);
dbContext.Insert(_quiz.Quiz);
}
SelectedQuiz = new QuizVM();
}
private void ClearSelectedQuiz(object parameter)
{
SelectedQuiz = new QuizVM();
}
private void RemoveQuiz(object parameter)
{
dbContext.Delete(_quiz.Quiz);
Quizes.Remove(_quiz);
SelectedQuiz = new QuizVM();
}
