Many things are very easy to accomplish in Qt. Qt’s designer is a great help with that. But the is no option to simply “enable” scrollbars for a frame. Also, the QScrollArea can nowhere be found in the designer. The solution is actually quite simple:

1. Add the component you want to be scrollable (QFrame, QLabel, …) in the designer as usual
2. In the application code:
   1. Create a new QScrollArea
   2. Set the parent of the widget you created in the designer to “None”
   3. Set the widget of the QScrollArea to the widget from step 1
   4. Insert the QScrollArea to you ui

And here’s some example code (boiled down to the essentials):

You would probably write this somewhere in you application-constructor right after you call setupUi.

This will insert the scroll area at the top of vboxlayout1 (see the doc for insertWidget). You can of course also use addWidget.

It’s a shame that there’s no direct support for QScrollArea in designer. Maybe we will see it in some future release.

An example for C++ can be found in the Qt Forums.