| SWT combo - dropdown event [message #314168] |
Wed, 04 April 2007 09:00 |
Eclipse User |
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I have googled around concerning SWT's Combo box and there are a lot
of stuff but nothing helpfull for me. I need an event that is posted
before the actual selection event or when the drop-down list is displayed.
I need to verify/process the contents of the edit-field before the user
makes a new selection. As with SWT.Selection the event is posted after
the edit-field has got the new value from the list and there-by the
newly entered contets is lost.
Something like:
combo.addListener(SWT.PreSelection, new Listener() { public void
handleEvent(Event e) {}});
Posted before the edit-field change contents.
or
combo.getList().addListener(SWT.Show, new Listener() { public void
handleEvent(Event e) {}});
Posted when the combo-list is displayed.
or
combo.getArrow().addListener(SWT.Selection, new Listener() { public void
handleEvent(Event e) {}});
Posted when the arrow button is pushed.
I have tried with the CCombo but it hade the drawback of deleting the newly
entered contets of the edit-field when the drop-down list is displayed.
Anyone having some code snippets which might help....
/Pelle
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