Question

我的代码如下，我正在尝试接收m_rows，这是一个数组。看起来它保持空白，我的框架保持空白。我可以看到班级收到了这个活动。我认为我的班级表工作正常。在从侦听器接收m_rows并将其传递给TableModel（m_rows）之间的代码中，您是否看到任何明显错误的内容？

由于

class Frame extends JFrame implements FlowListener {

    private List<Candle> m_rows = new ArrayList<Candle>();

    public Frame() {

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setTitle("Ma premiere fenetre");
        setBounds(50, 100, 1000, 800);

        Container conteneur = new JPanel();
        TableModel tableModel = new TableModel(m_rows);
        JTable table = new JTable(tableModel);

        JPanel tablePanel = new JPanel();

        tablePanel.add(table);

        conteneur.setLayout(new GridLayout(2, 1));
        conteneur.add(tablePanel);

        this.add(conteneur);
        this.setVisible(true);

    }

    @Override
    public void updateOnFlow(List<Candle> newFlow) {
        m_rows = newFlow;
        this.repaint();

    }

}

Answer 1

我认为问题在于为m_row分配内容对TableModel没有影响。试试这个：

class Frame extends JFrame implements FlowListener {
    private JTable table;
    ...

    public Frame() {
        ...
        TableModel tableModel = new TableModel(m_rows);  // Did you mean DefaultTableModel?
        table = new JTable(tableModel);
        ...
    }

    @Override
    public void updateOnFlow(List<Candle> newFlow) {
        m_rows = newFlow;
        TableModel tableModel = new TableModel(m_rows);
        table.setModel(tableModel);
        this.repaint();
    }
}

JFrame在收到活动后不会画画

1 个答案: