// Model,Viewと接続
 public void ConnectMV(QuestionModel questionModel,
     EditModeQuestionItemView questionItemView)
 {
     QuestionModel = questionModel;
     EditModeQuestionItemView = questionItemView;
     //EditModeQuestionItemView.SetViewModel(this);
 }
 // インスタンス作成 Model,Viewと接続
 public static _EditModeQuestionItemViewModel CreateInstance(
     QuestionModel questionModel,
     EditModeQuestionItemView questionItemView,
     UserControl root)
 {
     var instance = new _EditModeQuestionItemViewModel();
     instance.ConnectMV(questionModel, questionItemView);
     var answerModel = new AnswerModel();
     instance.EditModeAnswerViewModel = EditModeAnswerViewModel.CreateInstance(
         MainWindow.EditModePanel.InterFacePanel.editModeAnswerView1);
     instance.Root = root;
     return instance;
 }