Re: GtkTreeSelection error msgs.

[Kristian Rietveld <kris gtk org>]

On Tue, 2002-11-26 at 16:41, Harring Figueiredo wrote:
>  Folks,
>
>  Is there a function I can call to notify the View of changes on the Model so
> that I can get rid of these messages ?
>
> " (table_example:16493): Gtk-CRITICAL **: file gtktreeselection.c: line 491
> (gtk_tree_selection_selected_foreach): assertion `has_next' failed.
> There is a disparity between the internal view of the GtkTreeView,
> and the GtkTreeModel.  This generally means that the model has changed
> without letting the view know.  Any display from now on is likely to
> be incorrect. "
>
>
>  What I am doing is deleting rows on the GtkTreeList inside the call to the
> foreachFunc on   gtk_tree_selection_selected_foreach.

Which is absolutely *not* allowed. GTK+ >= 2.0.9 and GTK+ > 2.1.2 have
protection built-in to avoid this kind of things.

>   -- Note: I coudl get way with:
>    1) Iterate through all nodes (rows)
>    2) if selected -- remove node --

What you have to do is:
 1) build a list of nodes you want to remove
 2) remove the nodes

That's the safest approach. This is a bit annoying to write in GTK+ 2.0,
but it will be better in 2.1 (because you can use the new
gtk_tree_selection_get_selected_rows function).



regards,


        Kris


>  But I think that this is very impractical and slow -- 
>
>
> Thanks in advance.
>       
>
>
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