How to capitalize the first character of each word, or the first character of a whole string, with C#?
As discussed in the comments of @miguel's answer, you can use TextInfo.ToTitleCase
which has been available since .NET 1.1. Here is some code corresponding to your example:
string lipsum1 = "Lorem lipsum et";
// Creates a TextInfo based on the "en-US" culture.
TextInfo textInfo = new CultureInfo("en-US",false).TextInfo;
// Changes a string to titlecase.
Console.WriteLine("\"{0}\" to titlecase: {1}",
lipsum1,
textInfo.ToTitleCase( lipsum1 ));
// Will output: "Lorem lipsum et" to titlecase: Lorem Lipsum Et
It will ignore casing things that are all caps such as "LOREM LIPSUM ET" because it is taking care of cases if acronyms are in text (so that "NAMBLA" won't become "nambla" or "Nambla").
However if you only want to capitalize the first character you can do the solution that is over here… or you could just split the string and capitalize the first one in the list:
string lipsum2 = "Lorem Lipsum Et";
string lipsum2lower = textInfo.ToLower(lipsum2);
string[] lipsum2split = lipsum2lower.Split(' ');
bool first = true;
foreach (string s in lipsum2split)
{
if (first)
{
Console.Write("{0} ", textInfo.ToTitleCase(s));
first = false;
}
else
{
Console.Write("{0} ", s);
}
}
// Will output: Lorem lipsum et
Use regular expressions for this looks much cleaner:
string s = "the quick brown fox jumps over the lazy dog";
s = Regex.Replace(s, @"(^\w)|(\s\w)", m => m.Value.ToUpper());
There is another elegant solution :
Define the function ToTitleCase
in an static class of your projet
using System.Globalization;
public static string ToTitleCase(this string title)
{
return CultureInfo.CurrentCulture.TextInfo.ToTitleCase(title.ToLower());
}
And then use it like a string extension anywhere on your project:
"have a good day !".ToTitleCase() // "Have A Good Day !"