Re: TreeView path and iter

["Jonathon Jongsma" <jonathon jongsma gmail com>]

On 12/18/06, johnmb <johnmblackburn googlemail com> wrote:
> I am trying to navigate around a treeview and, to do this, I need a valid
> path object.  When I use the following two lines :-
>
>     group_iter = m_refTreeModel->get_iter("0");  // Points to first parent
> menu item
>     group_path = m_refTreeModel->get_path(group_iter);
>
> I get the following error message :-
>
> Gtk-CRITICAL **: gtk_tree_store_get_path: assertion `iter->user_data !=
> NULL' failed
>
> I have tried several variations including :-
>
>     group_path = m_refTreeModel->get_path(m_refTreeModel->get_iter("0"));
>
> but all with the same result - any ideas would be very welcome.

My first instinct is always to use the STL-like interfaces for things
like this if possible, so I rarely deal with the string representation
of paths.  In this case, you could do something like
m_refTreeModel->children().begin(), which would give you the first
iter. Then you could use this iter to get a path if you really need a
path.  I'm not sure if that helps you at all, though.

--
jonner