How do i resize the contents of a QScrollArea as more widgets are placed inside

Question

I have a QScrollArea Widget, which starts empty;

It has a vertical layout, with a

Answer 1

The documentation provide an answer :

widgetResizable : bool
This property holds whether the scroll area should resize the view widget. If this property is set to false (the default), the scroll area honors the size of its widget.

Set it to true.