HashTable排序问题

Question

将HashTable存放到ArrayList中 为什么HashMap的第一个值的等于第二个数的值，最后一个值为第一值，有什么办法能够解决这种排序方法，

Answer 1

dear
1.基本上HashTable是会按照内部演算法自动排序，他不开放排序的，若你要排序可使用SortedList。

[Edit this entry.] [C#.NET][VB.NET] 一般集合 – Hashtable 集合 類別 建立查詢表 / 搜尋關鍵字
http://www.dotblogs.com.tw/yc421206/archive/2009/01/24/6932.aspx

[C#.NET][VB.NET] 一般集合 - SortedList 集合類別 排序
http://www.dotblogs.com.tw/yc421206/archive/2009/01/24/6933.aspx

[C#.NET][VB.NET] 一般 / 泛型 Generic Collection 集合型別介紹
http://www.dotblogs.com.tw/yc421206/archive/2009/01/25/6941.aspx

2.不过您提到是把HashTable装进ArrayList，不知您是如何实做代码的，请贴上您的代码好认其他人方便诊断

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秘訣無它，唯勤而已 http://www.dotblogs.com.tw/yc421206/

Answer 2

  case "2":
                                        if (Request["radio_" + dr["Exam_Question_Id"].ToString()] != null)
                                        {
                                            listUserQuestion.Add(new ExamOnline.Model.admin.ExamManage.Exam_UserQuestion()
                                            {
                                                Exam_TestPaperDetail_Id = Convert.ToInt32(dr["Exam_TestPaperDetail_Id"].ToString()),
                                                Exam_TestPaper_Id = paperId,
                                                Exam_TestPaperDetail_Score = Convert.ToDecimal(dr["Exam_TestPaperDetail_Score"]),
                                                Exam_UserQuestion_Evaluate = 1,
                                                Exam_UserQuestion_Content = Request["radio_" + dr["Exam_Question_Id"].ToString()],
                                                Exam_UserQuestion_Score = Request["radio_" + dr["Exam_Question_Id"].ToString()].ToString().Equals(dr["Exam_Question_RightAnswer"].ToString()) ? Convert.ToDecimal(dr["Exam_TestPaperDetail_Score"]) : 0
                                            }
                                            );
                                            //错题本
                                            if (!Request["radio_" + dr["Exam_Question_Id"].ToString()].ToString().Equals(dr["Exam_Question_RightAnswer"].ToString()))
                                            {
                                                listMistake.Add(
                                                    new ExamOnline.Model.admin.ExamManage.Exam_Mistake()
                                                    {
                                                        Exam_Question_Id = int.Parse(dr["Exam_Question_Id"].ToString()),

                                                        Exam_TestPaper_Id = paperId,
                                                        userid = new Model.admin.ExamManage.ProfileUserInfo().intUserID,
                                                        Exam_Mistake_Title = questiontpMap[dr["Exam_QuestionType_id"].ToString()].ToString() + questionSortMap[dr["Exam_Question_Order"].ToString()].ToString(),
                                                        Exam_Question_WrongtAnswer = Request["radio_" + dr["Exam_Question_Id"].ToString()],
                                                        Exam_Mistake_Time = DateTime.Now
                                                    }

                                                );
                                            }
                                            else
                                            {
                                                rightCnt++;
                                            }
                                            //总分
                                            UserPaper.Exam_UsePaper_Score += Request["radio_" + dr["Exam_Question_Id"].ToString()].ToString().Equals(dr["Exam_Question_RightAnswer"].ToString()) ? Convert.ToDecimal(dr["Exam_TestPaperDetail_Score"]) : 0;
                                        }
                                        else
                                        {
                                            listUserQuestion.Add(new ExamOnline.Model.admin.ExamManage.Exam_UserQuestion()
                                            {
                                                Exam_TestPaperDetail_Id = Convert.ToInt32(dr["Exam_TestPaperDetail_Id"].ToString()),
                                                Exam_TestPaper_Id = paperId,
                                                Exam_TestPaperDetail_Score = Convert.ToDecimal(dr["Exam_TestPaperDetail_Score"]),
                                                Exam_UserQuestion_Evaluate = 1,
                                                Exam_UserQuestion_Content = "",
                                                Exam_UserQuestion_Score = 0
                                            });
                                            //错题本
                                            listMistake.Add(
                                                    new ExamOnline.Model.admin.ExamManage.Exam_Mistake()
                                                    {
                                                        Exam_Question_Id = int.Parse(dr["Exam_Question_Id"].ToString()),
                                                        Exam_TestPaper_Id = paperId,
                                                        userid = new Model.admin.ExamManage.ProfileUserInfo().intUserID,
                                                        Exam_Mistake_Title = questiontpMap[dr["Exam_QuestionType_id"].ToString()].ToString() + questionSortMap[dr["Exam_Question_Order"].ToString()].ToString(),
                                                        Exam_Question_WrongtAnswer = "",
                                                        Exam_Mistake_Time = DateTime.Now
                                                    }
                                                );
                                        }
                                        totalCnt++;
                                        break;



我想把里面的HashTable 使用ArrayList 进行替换 从而 使用ArrayList 的Sort排序  根据 进来的数据顺序进行排序

Answer 3

dear
1.你的问题跟代码里的不同意思，建议您在整理一番，在发问会比较快得到您要的答案
2.如同我之前回复的，若要排序建议使用SortedList 类别

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秘訣無它，唯勤而已 http://www.dotblogs.com.tw/yc421206/