Cross-platform file name handling in .NET Core

Question

How to handle file name in System.IO classes in a cross-platform manner to make it work on Windows and Linux?

For example, I write this code that works

Answer 1

Of course forward slashes work fine - except when they don't. It is an older problem, but certainly LoadLibrary actually bit me in this regard. Please see https://stackoverflow.com/a/34708551/1318024 which discusses this. Even though we do expect Windows to handle path separators gracefully (which we do not expect for *nix!) it is best to use the path separator appropriate for the platform.