Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
If you use a QAbstractListModel the data() will be accessed on demand only (tested). TableView will reuse delegates when scrolling up/down and not create new ones (according to description)