This provides information about using the getData and getUnderlyingDataAsync()
I hope that helps.
Hi Moshe Gottlieb,
getSummaryDataAsync will return all of the summary data for a viz. Is that what you're trying to do and it's not returning the correct data?
Or, are you trying to get data for just the marks that are selected? If so, you can use getSelectedMarksAsync (and then you'll have to iterate through the marks, and call getPairs->getValue). More info here: API Reference
If neither of the above are not what you're looking for, can you explain further what you're trying to see and what you're seeing instead?