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How to loop through all files in a folder or directory tree

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The code is fairly self explanatory:

/// sourceDir = directory to scan, scanLvl = current scan level, maxLvl = how deep to scan, searchPattern files to match

public static void ProcessFiles(string sourceDir, int scanLvl, int maxLvl, string searchPattern)
{
 if (scanLvl<=maxLvl)
{
 string [] fileEntries = Directory.GetFiles(sourceDir, searchPattern);
 foreach(string fileName in fileEntries)
 {
 // do something with file
 }


// Recurse into subdirectories
 string [] subdirEntries = Directory.GetDirectories(sourceDir);
 foreach(string subdir in subdirEntries)
 if ((File.GetAttributes(subdir) &
 FileAttributes.ReparsePoint) !=
 FileAttributes.ReparsePoint)


ProcessDir(subdir, scanLvl+1, maxLvl, searchPattern);
}
}

Thanks to Ohad for the starting point for this one.

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