3

MyTableCellEditor 的目的是使 JTable 单元格的行为类似于 Excel 单元格 IOW,在单元格中单击后输入值会覆盖而不是附加到现有值。我没想到下面的代码在第一遍就可以工作,但我确实希望在 getTableCellEditorComponent 和 getCellEditorValue 中遇到调试断点。为什么我使用 jTable 时没有调用 getTableCellEditorComponent 或 getCellEditorValue?

public class MyTable extends javax.swing.JFrame implements TableModelListener {
    private static final MyTableCellEditor tableCellEditor =
        new MyTableCellEditor();
        ...
    public MyTable() {
        initComponents();
        jTable.getModel().addTableModelListener(MyTable.this);
        ...
    private void initComponents() { // Generated by the Form Editor.
        jTable = new javax.swing.JTable();
        jTable.setCellEditor(tableCellEditor);
        ...
public class MyTableCellEditor extends AbstractCellEditor implements
        TableCellEditor {
    JComponent component = new JTextField();
    public Component getTableCellEditorComponent(JTable table, Object value,
            boolean isSelected, int rowIndex, int vColIndex) {
        if (isSelected) {
            ((JTextField)component).selectAll();
        }
        ((JTextField)component).setText((String)value);
        return component;
    }
    public Object getCellEditorValue() {
        return ((JTextField)component).getText();
    }
}
4

1 回答 1

7

setCellEditor(TableCellEditor)仅为当前活动的单元格设置编辑器(一旦不再活动,它将丢失。您想调用JTable.setDefaultEditor()以设置特定类的默认编辑器。

jTable.setDefaultEditor(String.class, tableCellEditor);

或者,您可以通过 为列设置编辑器TableColumnModel,例如

jTable.getColumnModel().getColumn(1).setCellEditor(tableCellEditor);
于 2010-11-02T13:55:44.193 回答