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    <ul> <li>How about override MetalComboBoxUI#paintCurrentValueBackground(...) <ul> <li>using JDK 1.7.0_17, Windows 7</li> </ul></li> </ul> <p><img src="https://i.stack.imgur.com/yFMeC.png" alt="enter image description here"></p> <pre><code>import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.text.*; import javax.swing.plaf.*; import javax.swing.plaf.basic.*; import javax.swing.plaf.metal.*; public class ComboBoxUIDemo { private static Color BORDER = Color.GRAY; public JComponent makeUI() { //UIManager.put("ComboBox.foreground", Color.WHITE); //UIManager.put("ComboBox.background", Color.BLACK); //UIManager.put("ComboBox.selectionForeground", Color.CYAN); //UIManager.put("ComboBox.selectionBackground", Color.BLACK); //UIManager.put("ComboBox.buttonDarkShadow", Color.WHITE); //UIManager.put("ComboBox.buttonBackground", Color.GRAY); //UIManager.put("ComboBox.buttonHighlight", Color.WHITE); //UIManager.put("ComboBox.buttonShadow", Color.WHITE); //UIManager.put("ComboBox.editorBorder", BorderFactory.createLineBorder(Color.RED)); Box box = Box.createVerticalBox(); UIManager.put("ComboBox.border", BorderFactory.createEmptyBorder()); for(int i=0; i&lt;2; i++) { // Defalut JComboBox&lt;String&gt; cb = new JComboBox&lt;&gt;(makeModel()); if(i%2==0) setEditable(cb); setPopupBorder(cb); box.add(cb); box.add(Box.createVerticalStrut(10)); } { // Override MetalComboBoxUI#paintCurrentValueBackground(...) JComboBox&lt;String&gt; cb = new JComboBox&lt;&gt;(makeModel()); cb.setUI(new MetalComboBoxUI() { @Override public void paintCurrentValueBackground( Graphics g, Rectangle bounds, boolean hasFocus) { //if (MetalLookAndFeel.usingOcean()) { if(MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme) { g.setColor(MetalLookAndFeel.getControlDarkShadow()); g.drawRect(bounds.x, bounds.y, bounds.width, bounds.height - 1); //COMMENTOUT&gt;&gt;&gt; //g.setColor(MetalLookAndFeel.getControlShadow()); //g.drawRect(bounds.x + 1, bounds.y + 1, bounds.width - 2, // bounds.height - 3); //&lt;&lt;&lt;COMMENTOUT if (hasFocus &amp;&amp; !isPopupVisible(comboBox) &amp;&amp; arrowButton != null) { g.setColor(listBox.getSelectionBackground()); Insets buttonInsets = arrowButton.getInsets(); if (buttonInsets.top &gt; 2) { g.fillRect(bounds.x + 2, bounds.y + 2, bounds.width - 3, buttonInsets.top - 2); } if (buttonInsets.bottom &gt; 2) { g.fillRect(bounds.x + 2, bounds.y + bounds.height - buttonInsets.bottom, bounds.width - 3, buttonInsets.bottom - 2); } } } else if (g == null || bounds == null) { throw new NullPointerException( "Must supply a non-null Graphics and Rectangle"); } } }); setPopupBorder(cb); box.add(cb); box.add(Box.createVerticalStrut(10)); } UIManager.put("ComboBox.border", BorderFactory.createLineBorder(BORDER)); for(int i=0; i&lt;2; i++) { // BasicComboBoxUI JComboBox&lt;String&gt; cb = new JComboBox&lt;&gt;(makeModel()); if(i%2==0) setEditable(cb); cb.setUI(new BasicComboBoxUI()); setPopupBorder(cb); box.add(cb); box.add(Box.createVerticalStrut(10)); } JPanel p = new JPanel(new BorderLayout()); p.setBorder(BorderFactory.createEmptyBorder(10,20,10,20)); p.add(box, BorderLayout.NORTH); return p; } private static void setEditable(JComboBox cb) { cb.setEditable(true); ComboBoxEditor editor = cb.getEditor(); Component c = editor.getEditorComponent(); if(c instanceof JTextField) { JTextField tf = (JTextField)c; tf.setBorder(BorderFactory.createMatteBorder(1,1,1,0,BORDER)); } } private static void setPopupBorder(JComboBox cb) { Object o = cb.getAccessibleContext().getAccessibleChild(0); JComponent c = (JComponent)o; c.setBorder(BorderFactory.createMatteBorder(0,1,1,1,BORDER)); } private static DefaultComboBoxModel&lt;String&gt; makeModel() { DefaultComboBoxModel&lt;String&gt; m = new DefaultComboBoxModel&lt;&gt;(); m.addElement("1234"); m.addElement("5555555555555555555555"); m.addElement("6789000000000"); return m; } public static void main(String[] args) { // OceanTheme theme = new OceanTheme() { // @Override protected ColorUIResource getSecondary2() { // return new ColorUIResource(Color.RED); // } // }; // MetalLookAndFeel.setCurrentTheme(theme); EventQueue.invokeLater(new Runnable() { @Override public void run() { createAndShowGUI(); } }); } public static void createAndShowGUI() { JFrame f = new JFrame(); f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); f.getContentPane().add(new ComboBoxUIDemo().makeUI()); f.setSize(320, 240); f.setLocationRelativeTo(null); f.setVisible(true); } } </code></pre>
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    1. CO+1 .... crazy hack, output looks like as for ATARI :-),
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    2. COthank you aterai! that seems to solve my problem! i'm still busy applying it to my program.
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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