public boolean setRenderedContent(ChoiceRenderer renderer,
                                      Comparator     choicesComparator,
                                      Comparator     stringComparator) {
        hide();
        listRenderer.setUserRenderer(renderer);
        boolean ret = choicesModel.setRenderedContent(choicesComparator, 
        		stringComparator);
        if (ret){
            historyModel.setStringContent(null);
        }
        return ret;
    }
public boolean setRenderedContent(ChoiceRenderer renderer,
                                      Comparator     choicesComparator,
                                      Comparator     stringComparator)