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Asked: 2026-05-10T14:42:25+00:00

Does anyone have a trusted Proper Case or PCase algorithm (similar to a UCase

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Does anyone have a trusted Proper Case or PCase algorithm (similar to a UCase or Upper)? I’m looking for something that takes a value such as 'GEORGE BURDELL' or 'george burdell' and turns it into 'George Burdell'.

I have a simple one that handles the simple cases. The ideal would be to have something that can handle things such as 'O'REILLY' and turn it into 'O'Reilly', but I know that is tougher.

I am mainly focused on the English language if that simplifies things.

UPDATE: I’m using C# as the language, but I can convert from almost anything (assuming like functionality exists).

I agree that the McDonald’s scneario is a tough one. I meant to mention that along with my O’Reilly example, but did not in the original post.

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  1. Unless I’ve misunderstood your question I don’t think you need to roll your own, the TextInfo class can do it for you.

    using System.Globalization;  CultureInfo.InvariantCulture.TextInfo.ToTitleCase('GeOrGE bUrdEll')

    Will return ‘George Burdell. And you can use your own culture if there’s some special rules involved.

    Update: Michael (in a comment to this answer) pointed out that this will not work if the input is all caps since the method will assume that it is an acronym. The naive workaround for this is to .ToLower() the text before submitting it to ToTitleCase.

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