Question

I have a function for getting a string to have only the first letter to be uppercase.

public class Class1
{
    public static string UppercaseFirst(string s)
    {
        // Check for empty string.
        if (string.IsNullOrEmpty(s))
        {
            return string.Empty;
        }
        // Return char and concat substring.
        return char.ToUpper(s[0]) + s.Substring(1).ToLower();
    }
}

Example:

string MyName = "john";
string result = Class1.UppercaseFirst(MyName)

Result: "John"

Is it possible to remove the “Class1.” before the call to the function?

Answer 1

Make it an extension method then you can call it like "john".UppercaseFirst();

You just need to declare your class as static and change the signature to the following

public static string UppercaseFirst(this string s)
    {...