How to move files from a parent source folder to a destination folder in C#?

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C#

I want to move files from a Parent source folder to a destination folder in c#. In the parent source folder there would be a parent sub folder and with in it multiple sub folders and if any file exists in the sub folders those files must get archived with same structure as that of the parent source folder.

I tried to call a recursive method but archiving works for only a single parent sub folder.

What I have tried:

public void TEST(string source,string dest)
   {

       string tempsource = string.Empty;
       string tempdest = string.Empty;

       if (string.IsNullOrEmpty(dest)==false)
       {

           DirectoryInfo dirInfo = new DirectoryInfo(dest);
           if (dirInfo.Exists == false)
               Directory.CreateDirectory(dest);


           DirectoryInfo dir = new DirectoryInfo(source);
           DirectoryInfo[] dirs = dir.GetDirectories();

           int archivalagefield = 0;


           foreach (DirectoryInfo subdir in dirs)
           {
               tempsource = Path.Combine(source, subdir.Name);
               tempdest = Path.Combine(dest, subdir.Name);
               if (!Directory.Exists(tempdest))
                   try
                   {
                       //Directory.Move(subdir.FullName, temppath);
                       Directory.CreateDirectory(tempdest);
                       string[] files = Directory.GetFiles(tempsource);
                       GetArchiveLogDate GA = new GetArchiveLogDate();
                        DataSet dsGetArchiveAgeDate = GA.FetchMaxArchiveDateValue();
                        string ArchivalAge = dsGetArchiveAgeDate.Tables[1].Rows[0]["PARAMVALUE"].ToString().Trim();
                        if (dsGetArchiveAgeDate.Tables.Count > 0)
                        {
                            if (dsGetArchiveAgeDate.Tables[1].Rows.Count > 0)
                            {
                                archivalagefield = int.Parse(ArchivalAge) * -1;
                            }
                        }

                       foreach (string file in files)
                       {
                           try
                           {
                               DateTime FromDateTime = DateTime.Now.AddDays(ArchivalAgeField);
                               DateTime FromDate = Convert.ToDateTime(FromDateTime.ToString("yyyy/MM/dd"));
                               DateTime dtFileCreatedDate = File.GetCreationTime(file);


                               if (dtFileCreatedDate <= FromDate) // Only if the CreatedDate is less than FromDate, directory needs to be created and file needs to be moved
                               {
                                   string name = Path.GetFileName(file);
                                   string destFile = Path.Combine(tempdest, name);

                                   if (name != "file") File.Move(file, destFile);
                               }
                           }
                           catch
                           {

                           }
                       }

                   }
                   catch
                   {

                   }
           }
       }
       tempsource = Path.Combine(tempsource, appendedfolder);
       tempdest = Path.Combine(tempdest, appendedfolder);
       TEST(tempsource, tempdest);
   }