How to write ClickListener for CheckBox in vaddin 7

Vaadin 6 / 7 / 8
1

Following code works fine in vaadin 6.8.x:

[code]
CheckBox checkbox = new CheckBox(“Checked”, true);
checkbox.setImmediate(true);
checkbox.addListener(new ClickListener() {
@Override
public void buttonClick(ClickEvent event) {
CheckBox checkbox = (CheckBox) event.getButton();
…
}

			});

[/code]But CheckBox.addListener(ClickListener listener) is not implemented in vaadin 7.0.x, If I want to switch to vaadin 7, what should the code be modified?

2

Use addValueChangeListener instead.

3

How can I know which checkbox is value changed? Checkboxes are generated in table rows.

4 

table.addGeneratedColumn("name", new Table.ColumnGenerator() {

			@Override
			public Object generateCell(Table source, Object itemId, Object columnId) {
				final Object str = source.getItem(itemId).getItemProperty("name").getValue();
				CheckBox box = new CheckBox();
				box.addValueChangeListener(new Property.ValueChangeListener() {

					@Override
					public void valueChange(ValueChangeEvent event) {
						Object value = event.getProperty().getValue();
						boolean isCheck = (null == value) ? false : (Boolean) value;
						Notification.show("name:" + str + "isChecked:" + isCheck);
					}
				});
				return box;
			}
		});
5

Thank you, Syam and Bill.

I change checkbox to be final, then it can be accessed in ValueChangeListener:
final CheckBox checkbox = new CheckBox();

6

Hi!
Is it possible to add onClickListener event?
ValueChangeEvent event is fired when the value has been already changed.
I want to show pop-up with confirmation.