Can I add extension methods to an existing static class?

Question

I\'m a fan of extension methods in C#, but haven\'t had any success adding an extension method to a static class, such as Console.

For example, if I want to add an e

Answer 1

I stumbled up on this thread while trying to find an answer to the same question the OP had. I didn't find the answer I wanted but I ended up doing this.

public static class MyConsole
{
    public static void WriteLine(this ConsoleColor Color, string Text)
    {
        Console.ForegroundColor = Color;
        Console.WriteLine(Text);   
    }
}

And I use it like this:

ConsoleColor.Cyan.WriteLine("voilà");