Lara Kannan

Utilize a simple extension method to capitalize the first letter of a string.

public class Program
{
    static void Main(string[] args)
    {
        string s = "toUpperFirstLetter";

        // ToUpperFirstLetter is the extension method defined below             
        Console.WriteLine(s.ToUpperFirstLetter());
        
        // output:  ToUpperFirstLetter             
        Console.ReadLine();
    }
}

// string extension class     
public static class StringExtension
{
    // string extension method ToUpperFirstLetter         
    public static string ToUpperFirstLetter(this string source)
    {
        if (string.IsNullOrEmpty(source))
            return string.Empty;
        // convert to char array of the string             
        char[] letters = source.ToCharArray();
        
        // upper case the first char             
        letters[0] = char.ToUpper(letters[0]);
        
        // return the array made of the new char array             
        return new string(letters);
    }
}

Source : www.codemeit.com
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