JCheckBox in JTable Rendering problem

[pothineni rajesh]

Hi All,
I am using Jtable with checkboxes as groups and subgroups.
it's some thing like

CkeckBox Group1
Checkbox Sub1 1 2 3 4
Checkbox Sub2 2 3 3 3
CheckBOx Group2
Checkbox Sub3 1 2 3 4
Checkbox Sub4 2 3 3 3


when clicking on CkeckBox Group1 all checkboxes under group1 must be checked.i.e. checkBox sub1 and sub2 must be checked..viceversa for deseleceting the checkBoxGroup1.

similarly for checkBox group2 ..

but when I am trying to do the same when clciking on group2 then also subgroups of group1 are selected..
may be this is becoz of renderining problem..

any help???

[Michael Dunn]

> may be this is becoz of renderining problem..

who knows?

the answer is in the code

[Rob Spoor]

Michael is correct. How are you setting the values? And what renderer are you using?

[pothineni rajesh]

Hi,

I am adding the rows as something like the below..

dtm.insertRow(y,new Object[]{"","","",new Boolean(false),affUnsprung.getModelYear(),affUnsprung.getVehicleFamily(),affUnsprung.getVehicleLine(),affUnsprung.getPriceClass(),affUnsprung.getBodyStyle(),affUnsprung.getMarketSegment(),affUnsprung.getEngineSc(),affUnsprung.getGvwrSc(),affUnsprung.getPickupBoxSc(),affUnsprung.getMktSegQualSc(),affUnsprung.getGvwRating(),affUnsprung.getSalesCode(),affUnsprung.getOptConnectorCodes()});

this is the logic for getting the rows and subgroups..

rowRenderer1.add(y, checkBoxRenderer1);
rowEditor1.setEditorAt(y, checkBoxEditor1);
y++;

here adding the renderers

affectedTable.getColumnModel().getColumn(3).setCellRenderer(rowRenderer1);

affectedTable.getColumnModel().getColumn(3).setCellEditor(rowEditor1);

and the renderer and editor class as below..

class EachRowRenderer implements TableCellRenderer {
protected Hashtable renderers;

protected TableCellRenderer renderer, defaultRenderer;
public EachRowRenderer() {

renderers = new Hashtable();
defaultRenderer = new DefaultTableCellRenderer();
}

public void add(int row, TableCellRenderer renderer) {
renderers.put(new Integer(row), renderer);
}

public Component getTableCellRendererComponent(JTable table, Object value,boolean isSelected, boolean hasFocus, int row, int column) {
renderer = (TableCellRenderer) renderers.get(new Integer(row));
if (renderer == null) {
renderer = defaultRenderer;
}
return renderer.getTableCellRendererComponent(table, value, isSelected,
hasFocus, row, column);
}
}

Row Editor as follows:

class EachRowEditor implements TableCellEditor {
protected Hashtable editors;

protected TableCellEditor editor, defaultEditor;

JTable table;

/**
* Constructs a EachRowEditor. create default editor
*
* @see TableCellEditor
* @see DefaultCellEditor
*/
public EachRowEditor(JTable table) {

this.table = table;
editors = new Hashtable();
defaultEditor = new DefaultCellEditor(new JTextField());
}