Problems with QSortFilterProxyModel

[Lykurg]

How exactly should I do that?

like this?

...
proxyModel->mapToSource();
model->removeRows( current, 1 );
...

...
proxyModel->mapToSource();
model->removeRows( current, 1 );
...

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Before you just guess how to do, just follow the link and read:

QModelIndex QSortFilterProxyModel::mapToSource ( const QModelIndex & proxyIndex ) const

so in your case:

foreach ( const QModelIndex & index, selection.indexes() ) {
           rows.append( ui->View->model()->mapToSource(index).row() );
        }

foreach ( const QModelIndex & index, selection.indexes() ) {
           rows.append( ui->View->model()->mapToSource(index).row() );
        }

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