void exportXmlTemplate(XmlWriter xml) {
xml.startTag("grid_range");
xml.writeTag("lower", getLowerValue());
xml.writeTag("upper", getUpperValue());
xml.writeTag("rigid", isRigid());
xml.closeTag(); // grid_range
}
void exportXmlTemplate(XmlWriter xml) {
xml.startTag("time");
xml.writeTag("format", text);
if (dateFormat instanceof SimpleDateFormat)
xml.writeTag("pattern", ((SimpleDateFormat) dateFormat).toPattern());
else xml.writeTag("pattern", ""); // A custom DateFormat can't be exported
if (textDate != null) xml.writeTag("value", Util.getTimestamp(textDate));
xml.closeTag();
}