Why is my ToTitleCase code not working?

Question

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I want to convert strings like "ARGO" to "Argo" and "LIONEL BARRYMORE" to "Lionel Barrymore"

I've got this code:

C#

private string rightCase(string goofyStr)
{
    CultureInfo cultureInfo = Thread.CurrentThread.CurrentCulture;
    TextInfo textInfo = cultureInfo.TextInfo;
    return textInfo.ToTitleCase(goofyStr);
}

...which I got form here (http://support.microsoft.com/kb/312890/en-us) and which I call like so:

C#

return string.Format("{0},{1},{2},", rightCase(category), rightCase(film), rightCase(actor));

...but it doesn't work ("ARGO" is returned unchaned, as "ARGO" etc.)

What am I doing wrong?

Posted 31-Jul-13 22:30pm

B. Clay Shannon

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4 solutions

Solution 1

You can try something like -

C#

CultureInfo.CurrentCulture.TextInfo.ToTitleCase("ARGO")

Posted 31-Jul-13 22:32pm

Nitesh Kejriwal

Solution 2

C#

// Creates a TextInfo based on the "en-US" culture.
      

  private string rightCase(string goofyStr)
    {
       TextInfo myTI = new CultureInfo("en-US",false).TextInfo;
       return myTI.ToTitleCase(goofyStr);
    }

Posted 31-Jul-13 22:39pm

Sushil Mate

Solution 4

C#

private string TitleCase(string goofyStr)
{
    TextInfo textInfo = new CultureInfo("en-US",false).TextInfo;
    return  textInfo.ToTitleCase( goofyStr);
}

Posted 31-Jul-13 22:43pm

CodeBlack

Comments

B. Clay Shannon 1-Aug-13 4:58am

Nope, this:

private string rightCase(string goofyStr)
{
TextInfo textInfo = new CultureInfo("en-US",false).TextInfo;
return textInfo.ToTitleCase(goofyStr);
}

...didn't work; they remain uppercase.

Nor did this:

string s = CultureInfo.CurrentCulture.TextInfo.ToTitleCase("ARGO");
MessageBox.Show(s);

(Message box showed "ARGO")

CodeBlack 1-Aug-13 5:03am

try this :

private string rightCase(string goofyStr)
{
TextInfo textInfo = new CultureInfo("en-US", false).TextInfo;
return textInfo.ToTitleCase(goofyStr.ToLower());
}

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André Kraak · Accepted Answer · 2013-07-31T22:59:00

Quote TextInfo.ToTitleCase[^]:
The ToTitleCase method provides an arbitrary casing behavior which is not necessarily linguistically correct. A linguistically correct solution would require additional rules, and the current algorithm is somewhat simpler and faster. We reserve the right to make this API slower in the future.

So the result is arbitrary and cannot be relied upon.

You could try making the string all lower case with TextInfo.ToLower[^] before using TextInfo.ToTitleCase[^] and see what the result is.