public void SetQuestionImg() { string filePath = Globals.ThisAddIn.exerciseJsonPath + paperName + ".json"; paper = jsonFileHelper.GetPaperFromFile(filePath); problemSet = jsonFileHelper.GetProblemSetFromFile(filePath); //Exercise pointExercise = new Exercise(); if (paper.PaperNodeList.Count != 0 && problemSet.ExerciseList.Count == 0) { exerciseOrderCount = 0; pointExercise = GetExerciseByOrder(paper.PaperNodeList as List <PaperNode>); } else if (paper.PaperNodeList.Count == 0 && problemSet.ExerciseList.Count != 0) { exerciseOrderCount = 0; pointExercise = GetExerciseByOrder(problemSet.ExerciseList as List <Exercise>); } ReSetQuestionDetail(); }