Re: Destroying widget in own callback

[Emmanuele Bassi <ebassi gmail com>]

On Mon, 2007-06-11 at 10:40 +0200, Jeffrey Ratcliffe wrote:
> The attached code produces the error message when the ComboBox is changed:
>
> GLib-GObject-CRITICAL **: g_object_notify: assertion `G_IS_OBJECT
> (object)' failed at ../assertiondemo.pl line 13.
>
> which is not surprising, given that the ComboBox is being destroyed in
> its own callback.
>
> In my application, it would be rather cumbersome to have to avoid
> destroying and recreating the widget in this way. Is there any other
> way of getting rid of the error message?

yes: don't do that.

use a Gtk2::ListStore and feed it to the combo box; then clear the model
and repopulate it. a Gtk2::ComboBox works exactly like a
Gtk2::TreeViewColumn (both implement the CellView interface and are a
CellLayout).

ciao,
 Emmanuele.

-- 
Emmanuele Bassi,  E: ebassi gmail com
W: http://www.emmanuelebassi.net
B: http://log.emmanuelebassi.net