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c#pathgetfiles

C# get file paths of just files with no extensions

I am wanting to get a string array of paths of files that do not have extensions. They are binary files with no extensions if that helps.

For example, I am loading a group of file paths out of a folder /test/

I want just the path and filenames that do not have a extension (so no .txt, no .csv, no .*)

/test/dontWant.txt

/test/dontWant.csv

/test/doWant

if i do:

String[] paths = Directory.GetFiles(fDir, "*.*", SearchOption.AllDirectories);

I of course get everything in those directories.

if I then try:

String[] paths= Directory.GetFiles(fDir, "*", SearchOption.AllDirectories);

I will still get everything in that directory.

Is there a way to just get the files of those that have no extension?

using "*." did work, and I don't know why I didn't try that to start with.

I should have been using EnumerateFiles to start with.

Solution

  • This will help:

    var filesWithoutExtension = System.IO.Directory.GetFiles(@"D:\temp\").Where(filPath => String.IsNullOrEmpty(System.IO.Path.GetExtension(filPath)));
foreach(string path in filesWithoutExtension)
{
    Console.WriteLine(path);
}

    It will return all the files w/o extension only in specified dir. If you want to include all the sub-directories you'd have to use: System.IO.Directory.GetFiles(@"D:\temp\", "*", SearchOption.AllDirectories).

    UPDATE
    As guys suggested, it's better to use Directory.EnumerateFiles because it consumes less ram.