public void RemoveQuestion()
{
using (UndoTransaction tx = new UndoTransaction(UndoManager))
{
StudyUnit.OnRemoveQuestion(SelectedQuestion);
SelectedQuestions.Remove(SelectedQuestion);
SelectedQuestionItem = null;
ConceptVM concept = SelectedConcept;
UpdateModel(false);
SelectedConcept = concept;
tx.Commit();
}
}
public void ChangeImage()
{
Debug.WriteLine("Change Image");
ConceptVM selectedConcept = SelectedConcept;
QuestionVM selectedQuestion = SelectedQuestion;
SelectObjectWindowVM <ConceptVM> vm = new SelectObjectWindowVM <ConceptVM>(Concepts);
ConceptVM newConcept = SelectObjectWindow.Select(Resources.SelectImage, vm) as ConceptVM;
if (newConcept != null && newConcept != selectedConcept)
{
SelectedQuestions.Remove(selectedQuestion);
SelectedQuestionItem = null;
ObservableCollection <QuestionVM> questions = RelatedQuestions(newConcept.Id);
questions.Add(selectedQuestion);
selectedQuestion.Question.ConceptId = newConcept.Id;
UpdateModel(true);
}
}
