Linq to file system to get last created file with different extensions in each sub folders

Question

see my post.

Here I am getting latest created file in each sub folder, but I need to get the latest created files with different extensions.

For example, there are five sub folders each containing more than one PDF file and more than one Excel file, then the query should bring one PDF file and one Excel file from each directory. I should have ten items in the result.

at which line can i add a GroupBy? – Kuttan Sujith Jan 17 '12 at 09:47 — Kuttan Sujith, Jan 17 '12 at 09:47

score 1 · Accepted Answer · answered Jan 17 '12 at 10:34

Would this work for you?

DirectoryInfo di = new DirectoryInfo(@"C:\Installers");

var recentFiles = di.GetDirectories()
    .SelectMany(d => d.EnumerateFiles()
                      .GroupBy(f => f.Extension)
                      .Select(gf => gf.OrderByDescending(f => f.CreationTimeUtc)
                                      .FirstOrDefault()))
    .Where(x => x != null)
    .Select(x => x.FullName)
    .ToList();

Linq to file system to get last created file with different extensions in each sub folders

1 Answers1