C# - Get Most recently created File name

Question

I need to get most recently created file name from a directory. I tried below thing.

    DirectoryInfo dirInfo = new DirectoryInfo(@"E:\Result");
    var file = dirInfo.GetFiles("PaperResult*").Select(f => f.CreationTime).First();
    Console.WriteLine(file);

But it is returning me Date and Time. It is not returning the file name. What am I missing here ? Any help is appreciated.

score 7 · Accepted Answer · answered Feb 24 '13 at 22:08

7

You want to order-by CreationTime, you don't want to select it.

var file = dirInfo.GetFiles("PaperResult*")
    .OrderByDescending(f => f.CreationTime).First();

answered Feb 24 '13 at 22:08

Tim Schmelter

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Great...I just wanted this. Thanks Tim . – skjcyber Feb 24 '13 at 22:12

score 1 · Answer 2 · answered Feb 24 '13 at 22:13

You could also use the MoreLinq Library MaxBy(..) method (MoreLinq available on Nuget, or here https://code.google.com/p/morelinq/)

var file = dirInfo.GetFiles("PaperResult*").MaxBy(f=> f.CreationTime);

This library has many other useful extensions, well worth getting hold of it.

score 0 · Answer 3 · answered Feb 24 '13 at 22:12

0

var file = dirInfo.GetFiles("PaperResult*").OrderByDescending(f => f.CreationTime).First();
Console.WriteLine(file);

answered Feb 24 '13 at 22:12

This is exactly what Tim posted except you added a write line that will display the object file. – Nate-Wilkins Feb 24 '13 at 22:13

C# - Get Most recently created File name

3 Answers3