How to decode a Unicode character in a string

Regex.Unescape did the trick:

System.Text.RegularExpressions.Regex.Unescape(@"Sch\u00f6nen");

_{Note that you need to be careful when testing your variants or writing unit tests: "Sch\u00f6nen" is already "Schönen". You need @ in front of string to treat \u00f6 as part of the string.}

If you landed on this question because you see "Sch\u00f6nen" (or similar \uXXXX values in string constant) - it is not encoding. It is a way to represent Unicode characters as escape sequence similar how string represents New Line by \n and Return by \r.

I don't think you have to decode.

string unicodestring = "Sch\u00f6nen";
Console.WriteLine(unicodestring);

Schönen was outputted.