[Gtk-sharp-list] [Newbie] TreeViewColumn.AddAttribute question

[Stephen Erickson]

I've got a TreeViewColumn, call it tvc, along with its renderer, call it
r

When I do tvc.AddAttribute(r,<i>string</i>,<i>int</i>), the
documentation is most unhelpful with what the string parameter named
attribute does and what valid values for it exist.

All of the example I find only have the hard-coded string literal "text"

So my questions are:

1. What does that parameter do?
2. What are the other valid values for it?

Thanks!