different aligment in jtable

[pariya shiri]

Hi guys
I have a jtable that I want some columns have right aligment and some of them have center. When I use this code:

    
        DefaultTableCellRenderer renderer_right = new DefaultTableCellRenderer();
        renderer_right.setHorizontalAlignment(JLabel.RIGHT);
        tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right);

        DefaultTableCellRenderer renderer_center = new DefaultTableCellRenderer();
        renderer_center.setHorizontalAlignment(JLabel.CENTER);
        
        for (int i=1; i<tb.getColumnCount();i++)
            tb.setDefaultRenderer(tb.getColumnClass(i), renderer_center);      

 

All of my columns get CENTER aligment!
What's the problem?
regards

[Bartek Myszkowski]

corrected source:

DefaultTableCellRenderer renderer_right = new DefaultTableCellRenderer();
renderer_right.setHorizontalAlignment(JLabel.RIGHT);
//tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right);
tb.getColumn(tb.getColumnName(0)).setCellRenderer(renderer_right);

DefaultTableCellRenderer renderer_center = new DefaultTableCellRenderer();
renderer_center.setHorizontalAlignment(JLabel.CENTER);

for (int i=1; i<tb.getColumnCount();i++) {
//tb.setDefaultRenderer(tb.getColumnClass(i), renderer_center);
tb.getColumn(tb.getColumnName(i)).setCellRenderer(renderer_center);
}

Explanation: tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right); sets renderer for specified column class (not column index!) You only take column class from column 0, next in for-loop class is tb.getColumnClass(i) but all column classes are the same so the same renderer will be used everywhere. Check what will happen when You put tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right); after for-loop.>

[pariya shiri]

Bartek Myszkowski wrote:corrected source:

DefaultTableCellRenderer renderer_right = new DefaultTableCellRenderer();
renderer_right.setHorizontalAlignment(JLabel.RIGHT);
//tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right);
tb.getColumn(tb.getColumnName(0)).setCellRenderer(renderer_right);

DefaultTableCellRenderer renderer_center = new DefaultTableCellRenderer();
renderer_center.setHorizontalAlignment(JLabel.CENTER);

for (int i=1; i<tb.getColumnCount();i++) {
//tb.setDefaultRenderer(tb.getColumnClass(i), renderer_center);
tb.getColumn(tb.getColumnName(i)).setCellRenderer(renderer_center);
}

Explanation: tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right); sets renderer for specified column class (not column index!) You only take column class from column 0, next in for-loop class is tb.getColumnClass(i) but all column classes are the same so the same renderer will be used everywhere. Check what will happen when You put tb.setDefaultRenderer(tb.getColumnClass(0),renderer_right); after for-loop.>

Wow! It's works. thanks a million:thumbup: