How to inform a Model/TableView that some data changed?

[waynew]

What about this?
void QAbstractItemModel::dataChanged ( const QModelIndex & topLeft, const QModelIndex & bottomRight ) [signal]

This signal is emitted whenever the data in an existing item changes.

If the items are of the same parent, the affected ones are those between topLeft and bottomRight inclusive
Then connect the signal to a slot where you view->show to refresh it?

How are you setting the model to the data? Seems like all you should have to do is re-run that code on the timer and the model/view signal slot will do what you want without further code.