Hello,
I am converting an Applet from AWT to Swing - I expected this to be very
straightforward but have got stuck
with some Scrollable functionality.
Basically I have a JPanel that contains many smaller JPanels - a stack of
them, one above the other.
The view can only show about four of these smaller JPanels and when more are
added I am expecting the JScrollPane to
automatically add the vertical scroll bars - but it doesn't. I am changing
the size of the JPanel that holds that smaller
JPanels but the JScrollPane just does not seem to recognise that the size
has changed.
Here is the code:
JPanel bhp = new JPanel();
bhp.setLayout(null);
bhp.setBounds(0,0,400,100);
... some code to add smaller JPanels to the bhp
// work out the size of the bhp
bhp.setBounds(0,0,400,44 * mainarray.size());
bhp.setSize(400,44 * mainarray.size());
sp = new JScrollPane(bhp);
sp.setBounds(0,0,400,150);
sp.setSize(400,150);
sp.setPreferredSize(new Dimension(400,150));
JPanel contentPane = new JPanel();
contentPane.setPreferredSize(new Dimension(400,150));
contentPane.add(sp, BorderLayout.CENTER);
Is it possible that because I have set the bhp layout to null, this is
preventing the JScrollPane from determining the bhp's height?
Any suggestions would be most appreciated, or perhaps a pointer to some
example where a JPanel is made scrollable using JScrollPane
Thanks
Khalid
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