Capitalize sentence in C# [duplicate]

Question

Possible Duplicate:
How to make a first letter capital in C#

I am trying to capitalize the first word in a sentence. This is what I have, but it is not working.

char.ToUpper(sentence[0]) + sentence.Substring(1)

Answer 1

JaredPar's solution is right, but I'd also like to point you towards the TextInfo class. ToTitleCase() will capitalize the first letter, and convert the remaining to lower-case.

        string s = "heLLo";
        var t = new CultureInfo("en-US", false).TextInfo;
        s = t.ToTitleCase(s); // Prints "Hello"

Answer 2

It sounds like you're just trying to capitalize the first character of a string value. If so then your code is just fine, but you need to assign the new string back into the sentence value.

sentence = char.ToUpper(sentence[0]) + sentence.Substring(1)

A string in .NET is immutable and hence every operation which changes the string produces a new value. It won't change the original value in place. So in order to see the result of the change, you must assign it into a variable.