string.ToTitleCase()

Strange how the string class almost has everything you need. I came across the need to Title Case some text, because I couldn't guarantee the text that I receive is properly formatted. I automatically assumed I could simply use .ToTitleCase() on my string. Woops, compilation error!

Luckily a search found a quick and easy solution, and I wrote the beginnings of my StringHelper class. It's first method? The .ToTitleCase() method.

public static class StringHelper

    public static string ToTitleCase(string text)

        return StringHelper.ToTitleCase(text, CultureInfo.InvariantCulture);

    public static string ToTitleCase(string text, CultureInfo cultureInfo)

        if (string.IsNullOrEmpty(text)) return string.Empty;

        TextInfo textInfo = cultureInfo.TextInfo;

        return textInfo.ToTitleCase(text.ToLower());

Some credit goes to this post for letting me know the all upper case issue.

Yeah, I know this has been discussed eons ago. This is mostly for my own reference.

posted on Monday, March 26, 2007 12:58 PM

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# re: string.ToTitleCase() 4/3/2007 10:34 AM Anonymous

WTF? Why would you name your method ToUpperCase if you're returning the TitleCase of the string? How does that make sence? This should be posted on the DailyWTF!!! HAHA

# re: string.ToTitleCase() 4/3/2007 10:49 AM Scott Muc

That is what people call a Copy+Paste Exception. Took a while to catch, but it's resolved now :)

# re: string.ToTitleCase() 4/19/2007 5:20 AM Daniel Moth

1. You still have references to UpperCase in your blog post
2. You forgot to include the return types in your two static methods: string
3. Since StringHelper only has static methods you should also make it static.

After you have catered for the above, the client code looks like this:
StringHelper.ToTitleCase(someString);

Not only that is longer than necessary, but it is also not discoverable by intellisense (in other words, the developer must *know* there is a StringHelper utlity class somewhere). You can fix this in C#3 using Extension Methods (see my blog).

After simply adding the keyword this to your helper method i.e.
public static string ToTitleCase(this string text) {...}

you can now call the code like this:
someString.ToTitleCase();

:-)

# re: string.ToTitleCase() 4/19/2007 9:55 AM Scott Muc

Bah... I need to improve my reviewing of my content. It's so easy to skim over it and believe it looks correct.

Extension Methods look awesome! I've always seen cases where I want to inherit everything from a base class (like string) and add a couple methods to it, but I don't want to change all my string declarations to the new class I've defined. It seems Extension Methods resolve that issue.

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