multiple tree views

[Pavol KlaÄanskà <pavol klacansky com>]

Hi, I need in my about 5 and more treeviews. I created one using glade,
but I don't know how can I use it multiple times, gtk says something
like this

> (client:25913): Gtk-WARNING **: Attempting to add a widget with type
> GtkTreeView to a container of type GtkHBox, but the widget is already
> inside a container of type GtkHBox, the GTK+ FAQ at
>  http://library.gnome.org/devel/gtk-faq/stable/ explains how to reparent 
> a widget.

I write code in Vala

Thanks