RE: GtkListStore

[Michael Tindal <etherscape paradoxpoint com>]

On Wed, 2003-04-23 at 05:15, martyn 2 russell bt com wrote:
> >  I am confused by this statement :
> > "Additionally, some models guarantee that an iterator is 
> > valid for as long as
> > the node it refers to is valid (most notably the GtkTreeStore and
> > GtkListStore)" (GtkTreeModel doc).
> >
> >
> >   Does it mean that I can store/save the interator in my 
> > application and use it
> > later to access the data ? ( Even if I delete/add rows ? )
>
> I wouldn't recommend it.  What happens if you store it and the thing it
> points to gets deleted? or moved? I *THINK* that at that point the iterator
> becomes invalid, but even if it doesnt and you use it, you will not be
> pointing at what you expect to be pointing at.
>
> I agree with you though, the documentation is not very clear when it
> introduces phrases like "... some models ...".  To me this sounds like they
> mean, "...depending on how the model is implemented..." - I could be wrong.
>
> Regards,
> Martyn

FWIW, in an earlier implementation of a program im writing, I stored the
iterators, expecting them to become invalid, but they remain valid even
after at least inserting rows, not sure about removing (havent tried).

YMMV.

Mike