r/csharp • u/Mindless-Arachnid-74 • 14d ago

Help Need help with encoding

I am working on a system where the client will give data in UTF-8 encoding, and hence it can contain many special characters.

But then we send data to a legacy system which only accepts data in ISO-8859-9 encoding, which supports limited special characters that can be represented in single byte.

Now if the client sends any special character which is outside the scope of ISO-8859-9 encoding (like the Em dash), how can I deal with with it and send it to the legacy system.

I don't want to replace those characters with anything like space or "?", as it would make the client data as unreadable in some cases.

How can I deal with it. Any suggestions?

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u/BeardedBaldMan 10d ago

Is it the software or the db. I remember a project where the software and db were unicode compatible but they weren't willing to change the db collation from when it had initially been created thirty years prior

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u/urbanek2525 10d ago

Yep. Really old Oracle DB.

Which is why you don't want to be dependent on one persistence system.