Re: Gtk::Treestore buildable appending data?

https://developer-old.gnome.org/gtkmm-tutorial/stable/sec-treeview-examples.html.en#treestore-example

On 12/24/21 3:38 AM, Roland Schwarz wrote:
> Dear all,
>
> is this a place to ask gtkmm usage questions?
>
> If so:
> I am trying to append data to a GtkTreestore which is defined in a 
> buildable description ui file.
>
> I can successfully load the GtkTreeStore from the ui file, but cannot 
> figure out how to add data to the store. The only way coming close (no 
> complaints during compile) is
>
> ...
>   auto treestore = m_refBuilder->get_object("treestore");
>   m_treestore = Glib::RefPtr<Gtk::TreeStore>::cast_dynamic(treestore);
> ...
>   auto iter = m_treestore->append();
>   iter->set_value(0, Glib::ustring("test"));
> ...
>
> The definition in the ui file is:
> ...
>   <object class="GtkTreeStore" id="treestore">
>     <columns>
>       <column type="gchararray"/>
>       <column type="gchararray"/>
>     </columns>
>   </object>
> ...
>
>
> During runtime, however I get a lot of assertions, dealing with type 
> issues as far as I understand, and nothing is displayed in the 
> treeview widget.
>
> Can anyone point me to a worked example please?
>
> Thank you for caring,
> Roland
>
>
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