fFieldViewer.setContentProvider(new ComboContentProvider());
fFieldViewer.setLabelProvider(new ComboLabelProvider());
fFieldViewer.setInput(fCondition);
/* Select the Condition's Field */
fFieldViewer.setSelection(new StructuredSelection(fCondition.getField()));
/* Listen to Changes */
fFieldViewer.addSelectionChangedListener(new ISelectionChangedListener() {
public void selectionChanged(SelectionChangedEvent event) {
fModified = true;