Event handling of a bound JCheckBox

I seem to be missing something here. I have a JCheckBox and a JTextField that are bound to ViewObject attributes.
If the CheckBox is selected, the textfield should be enabled. If the CheckBox is deselected, the textfield should be disabled.
My code works fine when the user interacts with the CheckBox, but it doesn't disable the textfield when navigating or after commiting even though the event does fire.
Here is my code:
void CK_emailLog_itemStateChanged(ItemEvent e)
// Enable or Disable the Email text field
if( e.getStateChange() == ItemEvent.DESELECTED )
mEmailGrp.setEnabled(false);
else
mEmailGrp.setEnabled(true);
What am I missing?
Thanks.

As I like to talk to myself often, I will post my findings since here in case anyone else ever needs this information since I can't seem to find any documentation on this simple task. ;-)
I was able to solve the event firing twice issue by registering the listener with the JCheckBox's model object instead of the checkbox itself.
I was also able to get the textbox disabled by setting the editable property to false instead of the enabled property.
Now it works fine except that I want to also clear the textbox when the Checkbox is deselected. I was able to accomplish it using the following:
// Clear the Email Group field
JUIteratorBinding o_iter = panelBinding.findIterBinding ("CycCtrlViewIter");
Row o_row = o_iter.getCurrentRow();
String S_value = (String) o_row.getAttribute("EmailGrp");
if( null != S_value )
o_row.setAttribute("EmailGrp", "" );
mEmailGrp.setEditable(false);
This works except that my checkbox doesn't stay unchecked. If I comment out the setAttribute statement above, the checkbox deselects properly. It seems that the row is requerying after the setAttribute call.
Anyone know what is up now?

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