每次运行后都清空数据字典 [英] Null out data dictionary after every run

问题描述

我有一个非常难以回答的问题，希望它有意义。我正在阅读两种不同类型的文本文件并检查字典中的记录。文本文件可以有不同的日期，所以我需要在检查一个文件之后转储字典，然后再通过数据库读取以获取文本文件的新日期。每次跑步后我怎么愚蠢的字典？



我尝试过：

I have a very difficult question to ask, hopefully it will make sense. I am reading two different types of text files and checking the records within a dictionary. The textfiles can have different dates so I need to dump the dictionary after it checks one file and read again through database to fetch the new date of the textfile. How do I dumb the dictionary after every run?

What I have tried:

private Dictionary<DateTime, Dictionary<string, long>> DataByNum;
       private Dictionary<DateTime, Dictionary<string, long>> DataByID;

       private Dictionary<string, long> GetNumData(DateTime DailyFileDate)
       {
           DailyFileDate = DailyFileDate.Date;
           if (DataByNum == null || !DataByNum.ContainsKey(DailyFileDate))
           {
               CacheData(DailyFileDate);
           }
           return DataByNum[DailyFileDate];
       }

       private Dictionary<string, long> GetIDData(DateTime DailyFileDate)
       {
           DailyFileDate = DailyFileDate.Date;
           if (DataByID == null || !DataByID.ContainsKey(DailyFileDate))
           {
               CacheData(DailyFileDate);
           }
           return DataByID[DailyFileDate];
       }

       private void CacheData(DateTime DailyFileDate)
       {
           DailyFileDate = DailyFileDate.Date;

           if (DataByNum == null)
           {
               DataByNum = new Dictionary<DateTime, Dictionary<string, long>>();
           }
           if (DataByID == null)
           {
               DataByID = new Dictionary<DateTime, Dictionary<string, long>>();
           }


           var result = ExtractData(DailyFileDate);


           foreach (DataRow row in result)
           {
               var date = DateTime.Parse(row.GetString("FileDate")).Date;
               if (!DataByNum.ContainsKey(date))
               {
                   DataByNum[date] = new Dictionary<string, long>();
               DataByNum[date].Add(row.GetString("Num"), row.GetLong("RID").Value);
               }
               if (!DataByID.ContainsKey(date))
               {
                   DataByID[date] = new Dictionary<string, long>();
               DataByID[date].Add(row.GetString("CustomerID"), row.GetLong("RID").Value);
               }
           }

推荐答案

您可以调用字典。清除（），或者只是用 new 重新实例化。

You can either call dictionary.Clear(), or simply re-instantiate it with new.

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