public static EditModeAnswerViewModel CreateInstance(
     EditModeAnswerView answerView)
 {
     var instance = new EditModeAnswerViewModel();
     instance.ConnectView(answerView);
     return instance;
 }
 public void SetViewModel(EditModeAnswerViewModel answerViewModel)
 {
     if (AnswerViewModel != null)
     {
         AnswerViewModel.EndEdit();
     }
     AnswerViewModel = answerViewModel;
     DataContext = AnswerViewModel;
     //dataGrid_Answer.Items.Refresh();
 }