final String param = (String)evt.getData();
getCellStyleContext().modifyStyle(new StyleModification(){
public void modify(CellStyle style, CellStyleContextEvent candidteEvt) {
candidteEvt.setExecutor(CellStyleCtrlPanel.this);
BorderStyle borderStyle = BorderStyle.MEDIUM;
if ("no".equals(param))
borderStyle = BorderStyle.NONE;
style.setBorder(getBorderType(param), borderStyle, color);
}
});