[Glade-users] GtkComboBox question.

[alexey.kurochkin at pathfinderlwd.com (Alexey Kurochkin)]

On Tue, 2009-02-17 at 22:18 -0500, Steve wrote:
> ---- John Coppens <john at jcoppens.com> wrote: 
> > On Mon, 16 Feb 2009 22:36:44 -0500
> > Steve <zephod at cfl.rr.com> wrote:
> >
> > > ---- John Coppens <john at jcoppens.com> wrote: 
> ...
> > > > Still, it  is not very difficult to modify them, and add a simple
> > > > GtkListStore with just one column to obtain the same funcionality.
> > >
> > > I'm a n00b at gtk programming so I need a little hand holding if you
> > > could. I can create a GtkListStore and add data to it but how do I
> > > associate the store with the combobox? Also, once this has been done,
> > > how do I retrieve the data in the store given the widget id of the
> > > combobox? 
> >
> > Well, assigning the ListStore to the ComboBox is easy with
> >
> > gtk_combo_box_set_model
> >
> > Assuming you made a one column ListStore, that's all there is to it.
> >
> > Then afterward, you can use the selection of the model
> > (gtk_tree_model_get_selection) to get at the item selected.
> >
> > It's not as easy as the ComboBoxText, but it does give you a better
> > control on what happening.
>
> Hmmm.... It clear to me that I have no idea what I'm doing. ]:-P 
> I have this code:
>
>     GtkListStore* store;
>     GtkWidget*    device_selector;
>
>     device_selector = glade_xml_get_widget ( 
>                               gxml, 
>                               "device_programming_combobox" );
>     store = gtk_list_store_new ( 1, G_TYPE_STRING );
>     gtk_tree_view_set_model ( (GtkTreeView *)device_selector, 
>                             (GtkTreeModel *)store );
>
> but when I execute I get this:
>
> Gtk-CRITICAL **: gtk_tree_view_set_model: assertion `GTK_IS_TREE_VIEW (tree_view)' failed
>
> What's wrong with this?

You should obviously use gtk_combo_box_set_model() instead. GtkTreeView
has nothing to do with it.