Getting files by creation date in NET

Question

I have a folder which contains many files  Is there any easy way to get the file names in the directory sorted by their creation date time   If I use Directory GetFiles    it returns the files sorted by their file name

User · Answer

This returns the last modified date and its age   DateTime Now Subtract System IO File GetLastWriteTime FilePathwithName  Date

User · Answer

DirectoryInfo dirinfo   new DirectoryInfo strMainPath               String   exts   new string        jpeg      jpg      gif      tiff      bmp     png      JPEG      JPG      GIF      TIFF      BMP     PNG                 ArrayList files   new ArrayList                foreach  string ext in exts                  files AddRange dirinfo GetFiles ext  OrderBy x   gt  x CreationTime  ToArray

User · Answer

If the performance is an issue  you can use this command in MS DOS    dir  OD  gt d  dir txt   This command generate a dir txt file in   d    root the have all files sorted by date  And then read the file from your code  Also  you add other filters  by   and

User · Answer

You can use Linq  var files   Directory GetFiles   C          OrderByDescending d   gt  new FileInfo d  CreationTime

User · Answer

this could work for you   using System Linq   DirectoryInfo info   new DirectoryInfo  PATH TO DIRECTORY HERE    FileInfo   files   info GetFiles   OrderBy p   gt  p CreationTime  ToArray    foreach  FileInfo file in files           DO Something

User · Answer

If you don t want to use LINQ     Get the files DirectoryInfo info   new DirectoryInfo  path to files     FileInfo   files   info GetFiles        Sort by creation-time descending  Array Sort files  delegate FileInfo f1  FileInfo f2        return f2 CreationTime CompareTo f1 CreationTime

User · Answer

jing   The DirectoryInfo solution is much faster then this  especially for network path    I cant confirm this  It seems as if Directory GetFiles triggers a filesystem or network cache  The first request takes a while  but the following requests are much faster  even if new files were added  In my test I did a Directory getfiles and a info GetFiles with the same patterns and both run equally  GetFiles  done 437834 in00 00 20 4812480 process files  done 437834 in00 00 00 9300573 GetFiles by Dirinfo 2   done 437834 in00 00 20 7412646

[c#] Getting files by creation date in .NET

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