I have to select the checkbox two times to check/uncheck in jTable
- by 117526709403775781607
I have a jTable code i intend to use, but the problem with it is that when i click on the checkbox once it doesn't select/deselect it, instead i have to click twice. But if i select any other cell in the row except the one containing the checkbox the purpose is solved.
HERE IS MY CODE :
public class TableSelectionTest extends JFrame implements ListSelectionListener {
private final int COLUMN_COUNT = 5;
private TblModel model;
public TableSelectionTest() {
initialize();
setDefaultCloseOperation(EXIT_ON_CLOSE);
pack();
}
private void initialize() {
List data = new ArrayList();
for (int i = 0; i < 10; i++) {
Object record[] = new Object[COLUMN_COUNT];
record[0] = Boolean.FALSE;
for (int j = 1; j < COLUMN_COUNT; j++)
{
record[j] = new Integer(j);
}
data.add(record);
}
model = new TblModel(data);
JTable table = new JTable(model);
table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table.getSelectionModel().addListSelectionListener (this);
JScrollPane scroll = new JScrollPane(table);
getContentPane().add(scroll, BorderLayout.CENTER);
}
public static void main(String[] args) {
TableSelectionTest f = new TableSelectionTest();
f.show();
}
class TblModel extends AbstractTableModel {
private List data;
public TblModel(List data) {
this.data = data;
}
public int getColumnCount() {
return COLUMN_COUNT;
}
public int getRowCount() {
return data == null ? 0 : data.size();
}
public void setValueAt(Object value, int rowIndex, int columnIndex) {
getRecord(rowIndex)[columnIndex] = value;
super.fireTableCellUpdated(rowIndex, columnIndex);
}
public Object getValueAt(int rowIndex, int columnIndex) {
return getRecord(rowIndex)[columnIndex];
}
public boolean isCellEditable(int rowIndex, int columnIndex) {
if(columnIndex == 0)
return true;
else
return false;
}
public Class getColumnClass(int columnIndex) {
if (data == null || data.size() == 0) {
return Object.class;
}
Object o = getValueAt(0, columnIndex);
return o == null ? Object.class : o.getClass();
}
private Object[] getRecord(int rowIndex) {
return (Object[]) data.get(rowIndex);
}
}
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
ListSelectionModel lsm = (ListSelectionModel) e.getSource();
int index = lsm.getMinSelectionIndex();
if(model.getRecord(index)[0] == Boolean.FALSE)
model.setValueAt(Boolean.TRUE, index, 0);
else if(model.getRecord(index)[0] == Boolean.TRUE)
model.setValueAt(Boolean.FALSE, index, 0);
}
}
}
Please reply soon as it is bugging me a lot
Thank you in advance :)
