CloudMusic/FNZCM2/FNZCM2.Abstractions/ideas/ScanExistedFolder/IOAPI.md

# IOAPI

System.IO.Enumeration.FileSystemEnumerable

using System.IO.Enumeration;

var files = new FileSystemEnumerable<FileInfo>(
    @"C:\YourHugeDirectory",
    (ref FileSystemEntry entry) => new FileInfo(entry.ToFullPath()),
    new EnumerationOptions
    {
        RecurseSubdirectories = true,
        IgnoreInaccessible = true
    });

foreach (var file in files)
{
    Console.WriteLine($"{file.FullName}: {file.Length} bytes");
}