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Editorial Team
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Asked: 2026-05-11T19:38:37+00:00

I have built a small app that allows me to choose a directory and

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I have built a small app that allows me to choose a directory and count the total size of files in that directory and its sub directories.

It allows me to select a drive and this populates a tree control with the drives immediate folders which I can then count its size!

It is written in .net and simply loops round on the directories and for each directory adds up the file sizes.

It brings my pc to a halt when It runs on say the windows or program files folders.

I had thought of Multi threading but I haven’t done this before.

Any ideas to increase performance?

thanks

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1 Answer

  1. Editorial Team

    Your code is really going to slog since you’re just using strings to refer to directories and files. Use a DirectoryInfo on your root directory; get a list of FileSystemInfos from that one using DirectoryInfo.GetFileSystemInfos(); iterate on that list, recursing in for DirectoryInfo objects and just adding the size for FileInfo objects. That should be a LOT faster.

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