Add new property to string class C# [duplicate]

Answer 1

You can only build extensions for objects...

something like that:

class Program
{
    static void Main(string[] args)
    {
        string x = "Hello World";
        x.DisplayNow();
    }
}

public static class StringExtension
{
    public static void DisplayNow(this string source)
    {
        Console.WriteLine(source);
    }
}

but i've never seen how u can extend a struct or a class which has never been initialized.