ToolTip on QListView Item

Hi,

I hav e a QListView object that's loaded with a QStringListModel and what I want, is to load particular tooltip information for each element and display when the mouse hovers over the row.
I've tried this but it doesn't seem to work:

Code:

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QAbstractItemModel *model = ui->HostList->model();
    QModelIndex idx = model->index(0,0);
    qDebug() << model->setData(idx, "Some tooltip",Qt::ToolTipRole);

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Anybody here that can help me with this?