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JTable/JScrollPane horizontal scrolling problem

Hi,

In a JApplet, I have a JTable embedded into a JScrollPane and I want to be able to scroll the table horizontally and vertically. The vertical scrolling works perfectly well, but I can't get the horizontal scrolling to work. The horizontal scrollbar appears but has no index, altough the columns spread past the rightmost limit of the scrollpane. Any ideas?

Here is my JTable/JScrollPane creation code (the table model is very simple and contains 12 text columns) :

getContentPane().setLayout(null) ;

m_table = new JTable(m_model) ;

for (int iCol = 0 ; iCol < m_model.getColumnCount() ; iCol++)
m_table.getColumnModel().getColumn(iCol).setMinWidth(200) ;

JScrollPane scrollPane = new JScrollPane(
m_table,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
m_table.setPreferredScrollableViewportSize(new Dimension(1600, 700)) ;
scrollPane.setBounds(0,0,1150,498) ;

getContentPane().add(scrollPane) ;

CEHJ

What happens on removing this?:

>>getContentPane().setLayout(null) ;

Tols

This works fine:

getContentPane().setLayout(new BorderLayout());
getContentPane().add(scrollPane,BorderLayout.CENTER) ;

CEHJ

Of course, if you're adding to a JFrame, the above code is redundant, but as I mentioned earlier, the problem is likely caused by your removing the layout manager.

Tols

I've checked it. RootLayout is good enough. CEHJ is right.

ASKER CERTIFIED SOLUTION

Mick Barry

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stsanz

ASKER

Thanks!

Mick Barry

No worries :)

http://www.objects.com.au

CEHJ

Unless you have a very good reason, calculating your own layouts is not a good idea. Try running your code on another OS and you'll see what I mean.