listDirs = new QListView(this);
listDirs->setSelectionMode(QAbstractItemView::ExtendedSelection);
QItemSelectionModel * selectionModel = listDirs->selectionModel();

QItemSelection curSelect = selectionModel->selection();
curSelect.select( listDirs->currentIndex(), listDirs->currentIndex() );
selectionModel->select( curSelect , QItemSelectionModel::Select);
int iRow = listDirs->currentIndex().row(); 
int curRowCount = modelDirs->rowCount(rootIndex);
if (iRow < curRowCount-1 ) 
{ 
listDirs->setCurrentIndex(modelDirs->index( iRow + 1, 0, rootIndex ) );
} 
if ( curRowCount-1 == iRow ) 
{ 
listDirs->setCurrentIndex(modelDirs->index( 0, 0, rootIndex ) ); 
}