我有一个JTable,它的一列是不可编辑的文本,第二列是一个显示布尔值的复选框…。现在我要的是,当用户选择多行并取消选中其中的任何一个时选中的复选框,则选中的所有复选框都应取消选中,反之亦然。
使用@Hovercraft的示例和@camickr的建议,以下示例显示了合适的用户界面。尽管它使用按钮,但它SelectionAction也适用于菜单或弹出窗口。
SelectionAction
import java.awt.*; import java.awt.event.ActionEvent; import javax.swing.*; import javax.swing.DefaultListSelectionModel; import javax.swing.table.DefaultTableModel; /** @see http://stackoverflow.com/questions/4526779 */ public class CheckABunch extends JPanel { private static final int CHECK_COL = 1; private static final Object[][] DATA = { {"One", Boolean.TRUE}, {"Two", Boolean.FALSE}, {"Three", Boolean.TRUE}, {"Four", Boolean.FALSE}, {"Five", Boolean.TRUE}, {"Six", Boolean.FALSE}, {"Seven", Boolean.TRUE}, {"Eight", Boolean.FALSE}, {"Nine", Boolean.TRUE}, {"Ten", Boolean.FALSE}}; private static final String[] COLUMNS = {"Number", "CheckBox"}; private DataModel dataModel = new DataModel(DATA, COLUMNS); private JTable table = new JTable(dataModel); private DefaultListSelectionModel selectionModel; public CheckABunch() { super(new BorderLayout()); this.add(new JScrollPane(table)); this.add(new ControlPanel(), BorderLayout.SOUTH); table.setPreferredScrollableViewportSize(new Dimension(250, 175)); selectionModel = (DefaultListSelectionModel) table.getSelectionModel(); } private class DataModel extends DefaultTableModel { public DataModel(Object[][] data, Object[] columnNames) { super(data, columnNames); } @Override public Class<?> getColumnClass(int columnIndex) { if (columnIndex == CHECK_COL) { return getValueAt(0, CHECK_COL).getClass(); } return super.getColumnClass(columnIndex); } @Override public boolean isCellEditable(int row, int column) { return column == CHECK_COL; } } private class ControlPanel extends JPanel { public ControlPanel() { this.add(new JLabel("Selection:")); this.add(new JButton(new SelectionAction("Clear", false))); this.add(new JButton(new SelectionAction("Check", true))); } } private class SelectionAction extends AbstractAction { boolean value; public SelectionAction(String name, boolean value) { super(name); this.value = value; } @Override public void actionPerformed(ActionEvent e) { for (int i = 0; i < dataModel.getRowCount(); i++) { if (selectionModel.isSelectedIndex(i)) { dataModel.setValueAt(value, i, CHECK_COL); } } } } private static void createAndShowUI() { JFrame frame = new JFrame("CheckABunch"); frame.add(new CheckABunch()); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.pack(); frame.setLocationRelativeTo(null); frame.setVisible(true); } public static void main(String[] args) { java.awt.EventQueue.invokeLater(new Runnable() { @Override public void run() { createAndShowUI(); } }); } }