How to decode UTF8 bytes?

Question

How can I decode UTF8 bytes in a string in C#?

Example: Decode this input:

"Poluci%C3%B3n"

To output this:

"Polución"

Do you have the source array? You could try System.Text.Encoding.UTF8.GetString(byteArray). — Andre Calil
– Andre Calil, Commented Aug 6, 2012 at 14:50
That's not UTF-8 encoded - it is URL encoded (aka percentage encoded). — Oded
– Oded, Commented Aug 6, 2012 at 14:50
What you have posted are UTF-16 strings, since we're talking about C#. What you want to do is urldecode... — Peter Ritchie
– Peter Ritchie, Commented Aug 6, 2012 at 14:52
@oded - This didn't come from a URL, although it is similar. I believe c3b3 is the hex representation in UTF8 for the U+00F3 unicode code point (ó). — seldary
– seldary, Commented Aug 6, 2012 at 15:05

Bradley Grainger · Accepted Answer · 2012-08-06 14:52:49Z

9

This encoding appears to be URL encoding (not UTF-8 encoding). You can unencode it with a number of different methods in .NET:

HttpUtility.UrlDecode("Poluci%C3%B3n"); // returns "Polución"
Uri.UnescapeDataString("Poluci%C3%B3n"); // returns "Polución"

answered Aug 6, 2012 at 14:51

Bradley Grainger

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Comments

Botz3000 · Accepted Answer · 2012-08-06 14:52:11Z

1

Try this:

Uri.UnescapeDataString("Poluci%C3%B3n")

the problem has nothing to do with UTF8 though. It's just URL encoded.

answered Aug 6, 2012 at 14:52

Botz3000

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