Re: Remove Multiple Rows from Gtk2::ListStore

[Zettai Muri <zettaimuri ymail com>]

> That likely happens because by removing rows you made one of the later paths 
> refer to non-existant rows so that $model->get_iter($path) returns undef.  One 
> quick hack that might make this work is to iterate over the @paths in reverse 
> order.  But to be safe you should follow the doc's advice[1] of converting the 
> paths to Gtk2::TreeRowReferences (which listen to changes in the model and adapt 
> accordingly).

Thank you for pointing me towards this.  I am using the following code:

        my $model = $tv_sources->get_model;
        my $selection = $tv_sources->get_selection;
        my @paths = $selection->get_selected_rows;
        
        # Convert paths to row references
        my @rowrefs;
        foreach my $p (@paths)
        {
            my $treerowreference = Gtk2::TreeRowReference->new ($model, $p);
            push (@rowrefs, $treerowreference);
        }
       
        # Remove rows based on row references
        for (my $i = 0; $i < scalar(@paths); $i++)
        {
            my $treerowreference = Gtk2::TreeRowReference->new ($model, $paths[$i]);
            my $path = $rowrefs[$i]->get_path;
            my ($iter) = $model->get_iter($path);
            $model->remove($iter);
        }

Not sure if it is the "right" way to do it but it works for me.

Was just wondering whether I need to do something like:

$tv_sources->set_model($model);

after the removals are finished  Or is this unnecessary because row references are being used?

Thanks again for all the help.


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