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copied!<p>The first example shows how you can specify a different editor for each row in the table:</p> <pre><code>import java.awt.*; import java.awt.event.*; import java.util.List; import java.util.ArrayList; import javax.swing.*; import javax.swing.table.*; public class TableComboBoxByRow extends JFrame { List<TableCellEditor> editors = new ArrayList<TableCellEditor>(3); public TableComboBoxByRow() { // Create the editors to be used for each row String[] items1 = { "Red", "Blue", "Green" }; JComboBox comboBox1 = new JComboBox( items1 ); DefaultCellEditor dce1 = new DefaultCellEditor( comboBox1 ); editors.add( dce1 ); String[] items2 = { "Circle", "Square", "Triangle" }; JComboBox comboBox2 = new JComboBox( items2 ); DefaultCellEditor dce2 = new DefaultCellEditor( comboBox2 ); editors.add( dce2 ); String[] items3 = { "Apple", "Orange", "Banana" }; JComboBox comboBox3 = new JComboBox( items3 ); DefaultCellEditor dce3 = new DefaultCellEditor( comboBox3 ); editors.add( dce3 ); // Create the table with default data Object[][] data = { {"Color", "Red"}, {"Shape", "Square"}, {"Fruit", "Banana"}, {"Plain", "Text"} }; String[] columnNames = {"Type","Value"}; DefaultTableModel model = new DefaultTableModel(data, columnNames); JTable table = new JTable(model) { // Determine editor to be used by row public TableCellEditor getCellEditor(int row, int column) { int modelColumn = convertColumnIndexToModel( column ); if (modelColumn == 1 && row < 3) return editors.get(row); // return (TableCellEditor)editors.get(row); else return super.getCellEditor(row, column); } }; System.out.println(table.getCellEditor()); JScrollPane scrollPane = new JScrollPane( table ); getContentPane().add( scrollPane ); } public static void main(String[] args) { TableComboBoxByRow frame = new TableComboBoxByRow(); frame.setDefaultCloseOperation( EXIT_ON_CLOSE ); frame.pack(); frame.setVisible(true); } } </code></pre> <p>The second example shows how you can create a very basic property editor (although it doesn't support combo boxes):</p> <pre><code>import java.awt.*; import java.util.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.table.*; public class TablePropertyEditor extends JFrame { public TablePropertyEditor() { String[] columnNames = {"Type", "Value"}; Object[][] data = { {"String", "I'm a string"}, {"Date", new Date()}, {"Integer", new Integer(123)}, {"Double", new Double(123.45)}, {"Boolean", Boolean.TRUE} }; JTable table = new JTable(data, columnNames) { private Class editingClass; public TableCellRenderer getCellRenderer(int row, int column) { editingClass = null; int modelColumn = convertColumnIndexToModel(column); if (modelColumn == 1) { Class rowClass = getModel().getValueAt(row, modelColumn).getClass(); return getDefaultRenderer( rowClass ); } else return super.getCellRenderer(row, column); } public TableCellEditor getCellEditor(int row, int column) { editingClass = null; int modelColumn = convertColumnIndexToModel(column); if (modelColumn == 1) { editingClass = getModel().getValueAt(row, modelColumn).getClass(); return getDefaultEditor( editingClass ); } else return super.getCellEditor(row, column); } // This method is also invoked by the editor when the value in the editor // component is saved in the TableModel. The class was saved when the // editor was invoked so the proper class can be created. public Class getColumnClass(int column) { return editingClass != null ? editingClass : super.getColumnClass(column); } }; table.setPreferredScrollableViewportSize(table.getPreferredSize()); JScrollPane scrollPane = new JScrollPane( table ); getContentPane().add( scrollPane ); } public static void main(String[] args) { TablePropertyEditor frame = new TablePropertyEditor(); frame.setDefaultCloseOperation( EXIT_ON_CLOSE ); frame.pack(); frame.setLocationRelativeTo( null ); frame.setVisible(true); } } </code></pre> <p>You should be able achieve what you want by using the suggestions from one or both of the above examples.</p>

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