How to detect the cause of a System.IO.IOException by an existing file?

Question

I want to create and open a file, but only if it does not exist. I do not want to use File.Exists, because the stream through the switch after creating the file with the same name.

How to check if a System.IO.IOException was raised by an existing file? I prefer not to parse the msg error (even if it can be as simple as .indexOf ("exists"))

How can I do it?

Answer 1

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Answer 2

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Answer 3

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Answer 4

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Answer 5

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