Select item in jcombobox in jtable

[Nuno Prudencio]

Hi everyone,

I can insert a jcombobox in a jtable cell. Is updated by a button. But i cannot select a default object in a combobox.

I have the following code in the button "update"

 TableColumn sportColumn = table.getColumnModel().getColumn(0);

        JComboBox comboBox = new JComboBox();
        comboBox.addItem("Snowboarding");
        comboBox.addItem("Rowing");
        comboBox.addItem("Knitting");
        comboBox.addItem("Speed reading");
        comboBox.addItem("Pool");
        comboBox.addItem("None of the above");
        comboBox.setSelectedItem("Speed reading");

        DefaultCellEditor defaultCellEditor = new DefaultCellEditor(comboBox);
        sportColumn.setCellEditor(defaultCellEditor);
        sportColumn.setCellRenderer(new CheckBoxCellRenderer(comboBox));
        table.repaint();

and i have the following TableCellRender

class CheckBoxCellRenderer extends JComboBox implements TableCellRenderer {

    public CheckBoxCellRenderer(JComboBox comboBox) {

        for (int i = 0; i < comboBox.getItemCount(); i++) {
            this.addItem(comboBox.getItemAt(i));
        }
    }

    @Override
    public Component getTableCellRendererComponent(JTable jtable, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
        this.setSelectedItem(value);

        return this;
    }

    @Override
    public void setSelectedItem(Object selecao) {
       this.setSelectedItem(selecao);
    }
}

Anybody can help me?

Regards

[m Korbel]

- use XxxTableModel.setValueAt(string_thats_match_with_JComboBox_Items), then you are set the initial value for XxxTableCellEditor/Renderer

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"I can insert a jcombobox in a jtable cell. Is updated by a button. But i cannot select a default object in a combobox."

- your implemetation of TableCellRenderer is wrong, JTable is designated to show value stored in XxxTableModel (see XxxTableModel.setValueAt)

- for more (and to use exclusivelly) information to read Oracle tutorial How to use Tables, part Using a Combo Box as an Editor