Should I Use Path.GetRandomFileName or use a Guid?

StackOverflow https://stackoverflow.com/questions/22625677

  •  20-06-2023
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Question

I need to generate unique folder names, should I use Path.GetRandomFileName or just use Guid.NewGuid?

Guids say they are globally unique, GetRandomFileName does not make such a claim.

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Solution

I think both are equally random, the difference being that Path.GetRandomFileName will produce a 8.3 filename (total of 11 characters) so is going to have a smaller set of unique names than those generated by Guid.NewGuid.

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