Since the data exporter widget downloads data that is returned to the Mashup, you could tie in a Validator to validate there are rows before enabling the 'Data Export' widget or intercept the request and show a Message if there are no records.
Since the data exporter widget downloads data that is returned to the Mashup, you could tie in a Validator to validate there are rows before enabling the 'Data Export' widget or intercept the request and show a Message if there are no records.
