gistfile1.txt

using System;
using System.Linq;
using System.Windows.Forms;

class Test
{
    public static void Main()
    {
        var combo = new ComboBox
        {
            Items = { "Foo", "Bar", "Baz" }
        };
        combo.SelectedIndexChanged += (sender, e) =>
            Console.WriteLine("Index changed!");
        
        Form form = new Form { Controls = { combo } };
        Application.Run(form);
    }
}