Question

我有两个JTable，他们必须互相同步。这两个JTable是允许设置录制的。

所以我想知道在移动列时如何同步JTableHeader行为。

非常感谢，伙计。

Answer 1

为此，您可以使用TableColumnModelListener import java.awt.BorderLayout; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.event.ChangeEvent; import javax.swing.event.ListSelectionEvent; import javax.swing.event.TableColumnModelEvent; import javax.swing.event.TableColumnModelListener; import javax.swing.table.DefaultTableModel; public class Example { public static void main(String[] args) { new Example(); } public Example() { JFrame frame = new JFrame("Rotation"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JTable t = new JTable(new DefaultTableModel(new Object[][]{{1,2}},new Object[]{"1","2"})); final JTable t1 = new JTable(new DefaultTableModel(new Object[][]{{1,2}},new Object[]{"1","2"})); frame.getContentPane().add(new JScrollPane(t),BorderLayout.WEST); frame.getContentPane().add(new JScrollPane(t1),BorderLayout.EAST); t.getColumnModel().addColumnModelListener(new TableColumnModelListener() { @Override public void columnSelectionChanged(ListSelectionEvent arg0) { } @Override public void columnRemoved(TableColumnModelEvent arg0) { } @Override public void columnMoved(TableColumnModelEvent arg0) { int fromIndex = arg0.getFromIndex(); int toIndex = arg0.getToIndex(); t1.moveColumn(fromIndex, toIndex); } @Override public void columnMarginChanged(ChangeEvent arg0) { } @Override public void columnAdded(TableColumnModelEvent arg0) { } }); frame.pack(); frame.setVisible(true); } }。这允许您根据源表交换其他表中的列。示例代码：

{{1}}

Answer 2

我的代码如下

 public static void syncTableColumnOrder(final JTable main, final JTable... tables) {

    /* if table is not reordering-allowed, this method is meaningless */
    if (!main.getReorderingAllowed()) 
        return;

    /* if two tables trigger event each other, it'll be infinite loop */
    for (JTable table : tables) {
        if (table == null) continue;
        table.setReorderingAllowed(false);
    }

    /* when main table moves coloumn, effect others */
    main.getColumnModel().addColumnModelListener(new TableColumnModelListener() {
        @Override
        public void columnAdded(TableColumnModelEvent e) {}
        @Override
        public void columnRemoved(TableColumnModelEvent e) {}
        @Override
        public void columnMoved(TableColumnModelEvent e) {
            for (JTable table : tables) {
                table.moveColumn(e.getFromIndex(), e.getToIndex());
            }
        }
        @Override
        public void columnMarginChanged(ChangeEvent e) {}
        @Override
        public void columnSelectionChanged(ListSelectionEvent e) {}
    });
}

当列移动时，如何同步两个JTable和JTableHeader？

2 个答案: