Event of show and hide popup of Combobox

Hi,
The following feature is observed:
I click on a combobox on a panel and the popup is displayed. I click on the panel (blank space, not another component on the panel), the popup of Combobox is hidden. However, I cannot find a listener for the combobox to listen to this event. I've tried ActionListener, FocusListener and some other listeners. I've also tried to add listeners to the components in the combobox.
Component[] c = myCombo.getComponents();
for (int i = 0; i < c.length; i++)
c.addSomeListener(someListener);
But it still doesn't work. Does anybody know what event I should listen to? (Not add listener to the panel, only to the combobox)
Thanks a lot.

Up to Java 1.4 there is no event that you can listen to.
In 1.4 you JComboBox has this method:
public void addPopupMenuListener(PopupMenuListener l)
If you can, I really recommend updating to 1.4 (just out in Beta2). There are a lot of small, but overall very important improvements to Swing.
Stephen

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Method ONACTIONSHOW_HIDE
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once again check the name of the nodes and the elements.
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Message Edited by devchander on 01-24-2006 06:09 AM
Attachments:
plot.vi ‏176 KB

Event of show and hide popup of Combobox

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