[Gtk-sharp-list] Add a menu to a treeview

[Raúl Moratalla]

Hi! It's Raúl again with another question about gtk# ;)
I want to display a menu when the user clicks (with right button) on a
cell of a treeview. I searched in the code of monodevelop but I couldn't
find the part of the code that do it.
I'm sorry if I make too many questions but there is no much
documentation about gtk# and there are a few applications that are
developed using mono/gtk#.

Cheers,

Raúl