Java swing Jtable无法使用AbstractTableModel通过fireXXX更新

Question

I have a JTable in my GUI, which I wish to update dynamically. Associated to the Jtable is of course a TableModel, where I've extended the AbstractTableModel and overridden appropiate methods.

I have four methods for my JTable:

• AddRow
• CopySelectedRow
• DeleteSelectedRow
• DeleteAll

When I run either AddRow or CopySelectedRow the table is 'one update behind':

If I press newRow once, nothing happens visually.

If I press newRow twice, the first one is shown while the second isn't.

However, using deleteSelected or deleteAll updates the table when I click (ie not behind).

Extract of my TableModel class:

public class TableModel extends AbstractTableModel {

private List<String[]> data;

public TableModel() {
    data = new ArrayList<String[]>();
}

...

public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
    data.get(rowIndex)[columnIndex] = aValue.toString();
    fireTableCellUpdated(rowIndex, columnIndex);
}

public void addRow(String[] aValue) {
    data.add(aValue);
    fireTableRowsInserted(data.size()-1, data.size()-1);
}

public void copyRow(int rowIndex) {
    addRow(data.get(rowIndex));
}

public void removeRow(int rowIndex) {
    data.remove(rowIndex);
    fireTableRowsDeleted(rowIndex, rowIndex);
}

And how I call them:

JButton newRow = new JButton("New row");
    newRow.addActionListener(new ActionListener() {
        // Handling newRow event
        public void actionPerformed(ActionEvent e) {
            tableModel.addRow(new String[]{"", "", "", "", "", "", "", "", "", "", ""});
        }
    });

    JButton copyRow = new JButton("Copy selected row");
    copyRow.addActionListener(new ActionListener() {
        // Handling copyRow event
        public void actionPerformed(ActionEvent e) {
            if (table.getSelectedRow() != -1) {
                tableModel.copyRow(table.getSelectedRow());
            }
        }
    });

    JButton deleteRow = new JButton("Delete selected row");
    deleteRow.addActionListener(new ActionListener() {
        // Handling deleteRow event
        public void actionPerformed(ActionEvent e) {
            if (table.getSelectedRow() != -1) {
                tableModel.removeRow(table.getSelectedRow());
            }
        }
    });

    JButton deleteAllRows = new JButton("Delete all rows");
    deleteAllRows.addActionListener(new ActionListener() {
        // Handling deleteAllRows event
        public void actionPerformed(ActionEvent e) {
            for (int i = tableModel.getRowCount() - 1; i >= 0; i--) {
                tableModel.removeRow(i);
            }
        }
    });

EDIT:

I chose to use an AbstractTableModel because I had the same problem with the DefaultTableModel (whenever I added a row, it wasn't added until the next was 'added'), and with an AbstractTableModel I would be able to fire change events myself. However, it didn't fix a thing. Can anyone please shed some light on my issue here? I'd be happy to elaborate more on the case, should anyone need some more information.

Answer 1

A method

FireTableDataChanged(); 

detects any kind of alteration in table data object and update the GUI respectively, you can try that instead of

fireTableRowsInserted();