About central widget in Qt Designer

[lrjdragon]

Hi,guys:
Have you ever met such a problem:when you create ui with Qt Designer,there are some containers such as QMainWindow and QScrollArea,which will always regard widget you drag into it as the descents of their central widget, which is not exactly what I expect. What I want to do is to set its central widget.Can you help me out?
Thanks in advance.

[axeljaeger]

You cannot set the central widget directly in designer. Drag some widget onto the central widget of the main window and use a vertical or horizontal box layout. (Doesnt matter which one of both)

[lrjdragon]

You cannot set the central widget directly in designer. Drag some widget onto the central widget of the main window and use a vertical or horizontal box layout. (Doesnt matter which one of both)

Thanks,you just saved me from the hell~