[maxxxxx]

True. A while ago I looked into Qt and one problem was that there weren't too many 3rd party components on the market. For WPF and Winforms you can buy extremely powerful components like data grids and tree views (I have been using Developer Express) but I didn't find any for qt.

[pknopf]

Checkout QML (as opposed to widgets).

http://doc.qt.io/qt-5/qml-qtquick-controls-treeview.html

http://doc.qt.io/qt-5/qml-qtquick-controls-tableview.html

Here are all the controls: http://doc.qt.io/qt-5/qmltypes.html