combo.setToolTipText(Messages.getString(messagePrefix + "_hint")); //$NON-NLS-1$
final ComboViewer comboViewer = new ComboViewer(combo);
//Add Focus-Lost Listener so that the entered text gets converted to a IField and gets selected.
//This way the databinding works
combo.addFocusListener(new FocusListener() {
private StringToFieldConverter converter = new StringToFieldConverter(null, comboViewer);
public void focusGained(FocusEvent e) {}
public void focusLost(FocusEvent e) {