Using widgets in MonoDevelop and GTKSharp

I switched from VirtualStudio Express 2010 and I am trying to work with MonoDevelop and GTKSharp. Now. I'm trying to switch to new editing software, but it seems a lot different than VisualStudio.

What I'm trying to do is basically use widgets in this editor. For example, when I create a button in VisualStudio, and then double-click an element, I automatically get a piece of code representing the element in the form. And here's the problem, how do I create events for buttons and comboboxes in MonoDevelop? I’ve been browsing online examples for two days now and I can’t figure out how to do this. The examples are not clear enough.

What am I trying to create? First, I try to figure out how to use a ComboBox and a button that will allow me to select one of the 3 parameters in the ComboBox, and then when the button event occurs, I want to start 1 of 3 separate windows depending on which item was selected.

Please provide me some simple examples of working with MonoDevelop, otherwise I will need to return to Windows :(

Please, help!

// edit //

Lets say that I have time on hand, and I'm really interested in it. Therefore, if GTK # still allows me:

public MainWindow () : base(Gtk.WindowType.Toplevel)
{
    Build ();
    button1.Clicked += button1_Click;
    combobox1.SelectionGet += comboBox1_Selection; << is this correct?
}


private void button1_Click(object s, EventArgs e)
{
}

private void comboBox1_Selection (object s, EventArgs e)
{
    switch (combobox1.SelectedIndex)
    {
        case 0:
            window1.Show();
            break;
        case 1:
            window2.Show();
            break;
        case 2:
            window3.Show();
            break;
    }
}

But I feel more lost than before.