在顶部显示jscrollpane的垂直滚动条

Question

I have a JScrollPane containing a JPanel.JPanel consist of one JCombobox,one JTextfield,4 JTextarea whose values are depend on selected item in combobox. Problem is vertical scrollbar of scrollpane always start at the bottom.

I tried with

scrollPane.getVerticalScrollBar().setValue(0);

and also tried with

scrollPane.getViewport().setViewPosition(new Point(0,0));

but nothing seems work.Any help would be appreciated.

Answer 1

Wrap the call scrollPane.getVerticalScrollBar().setValue(0); in SwingUtilities.invokeLater() to let content layout be done first.