ToUpper() is changing sometimes the character (µ -> M)

Question

Possible Duplicate:
.net micro (µ) greek letter uppercase issue

I have a function that is converting all string to uppercase. I'm just using string.ToUpper() method.

Well it's working. But for some characters ToUpper() is doing weird stuff. Like for µ, a µ.ToUpper() is an M. Why? How can I avoid this? Just UpperCase chars if there is an upper case character :)?

Check out http://msdn.microsoft.com/en-us/library/dd465121.aspx to understand CultureInfo — gws2, Feb 05 '13 at 16:45
@E.T. oh! Good to know. So actually this is not a C#/.NET issue, it's more an issue with my greek skills :D — sabisabi, Feb 06 '13 at 08:36

score 5 · Answer 1 · answered Feb 05 '13 at 16:44

5

Specify culture or use InvariantCulture when doing string transformations. For example:

"µ".ToUpper(CultureInfo.InvariantCulture)

or

"µ".ToUpperInvariant()

returns µ

answered Feb 05 '13 at 16:44

Ilya Ivanov

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score 5 · Accepted Answer · answered Feb 05 '13 at 16:44

5

You can use the method String.ToUpperInvariant().

In this method, the invariant culture is used.

This method is exactly the same as calling myString.ToUpper(CultureInfo.InvariantCulture);

answered Feb 05 '13 at 16:44

Cédric Bignon

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+1. I've stolen your `ToUpperInvariant` – Ilya Ivanov Feb 05 '13 at 16:47
Well, it won't make my day, buy anyway - cheers) – Ilya Ivanov Feb 05 '13 at 16:55

score 0 · Answer 3 · answered Feb 05 '13 at 16:43

0

It's most probabbly culture related issue, use a String.ToUpper Method (CultureInfo), where you can specify Invariant culture.

answered Feb 05 '13 at 16:43

Tigran

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ToUpper() is changing sometimes the character (µ -> M)

3 Answers3