Is there a faster way than this to find all the files in a directory and all sub directories?

Question

I\'m writing a program that needs to search a directory and all its sub directories for files that have a certain extension. This is going to be used both on a local, and a

Answer 1

In .net core you can do something like this below. It can search for all subdirectories recursively with good performance and ignoring paths without access. I also tried other methods found in

https://www.codeproject.com/Articles/1383832/System-IO-Directory-Alternative-using-WinAPI

public static IEnumerable ListFiles(string baseDir)
{
    EnumerationOptions opt = new EnumerationOptions();
    opt.RecurseSubdirectories = true;
    opt.ReturnSpecialDirectories = false;
    //opt.AttributesToSkip = FileAttributes.Hidden | FileAttributes.System;
    opt.AttributesToSkip = 0;
    opt.IgnoreInaccessible = true;

    var tmp = Directory.EnumerateFileSystemEntries(baseDir, "*", opt);
    return tmp;
}