Convert elements in a List to Title-Case?

Question

I am trying to convert all list items to TitleCase. I thought TitleCase would be simple, but it does not seem to work the same as uppercase or lowercase. Any ideas? This is what works for upper and lower:

List myList = new List() { "abc", "DEF", "Def", "aBC" };

myList = myList.ConvertAll(x => x.ToUpper());
myList = myList.ConvertAll(x => x.ToLower());

but neither of these work:

myList = myList.ConvertAll(x => x.ToTitleCase());
myList = myList.ConvertAll(x => x.TitleCase());

Answer 1

Use TextInfo.ToTitleCase method.

List<string> myList = new List<string>() { "abc", "DEF", "Def", "aBC" };
CultureInfo currentCulture =  System.Threading.Thread.CurrentThread.CurrentCulture;
myList = myList.Select(r=> currentCulture.TextInfo.ToTitleCase(r.ToLower())).ToList();

output:

foreach (string str in myList)
    Console.WriteLine(str);

Result:

Abc
Def
Def
Abc

EDIT:

You can use ConvetAll like:

myList =  myList.ConvertAll(r => currentCulture.TextInfo.ToTitleCase(r.ToLower()));