QTableWidget - D&D

[GrahamLabdon]

Hello
I have used Qt Designer to make a dialog containing a QTableWidget.
I have set the following - so that I can drag and drop rows within the table

tableWidget->setAcceptDrops(true);
        tableWidget->setDragEnabled(true);
        tableWidget->setDefaultDropAction(Qt::MoveAction);
        tableWidget->setSelectionMode(QAbstractItemView::NoSelection);
        tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);

tableWidget->setAcceptDrops(true);
        tableWidget->setDragEnabled(true);
        tableWidget->setDefaultDropAction(Qt::MoveAction);
        tableWidget->setSelectionMode(QAbstractItemView::NoSelection);
        tableWidget->setSelectionBehavior(QAbstractItemView::SelectRows);

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However I cannot drag rows within the table

What have I missed

TIA

Graham