private void ViewShown(IEditQuestionView sender)
 {
     if (!isHiding)
     {
         currentQuestionBuilder = Argument.EditTreeView.CurrentObject as QuestionBuilder;
         if (currentQuestionBuilder != null)
         {
             sender.Themes         = Argument.ExamBuilder.ThemeBuilders.ToArray();
             sender.Theme          = currentQuestionBuilder.ThemeBuilder;
             sender.QuestionType   = currentQuestionBuilder.GetType();
             sender.QuestionNumber = currentQuestionBuilder.QuestionNumber + 1;
             HideViews();
             if (currentQuestionBuilder is OneAnswerQuestionBuilder)
             {
                 View.EditOneAnswerQuestionView.Show();
             }
         }
     }
 }