[starting from version: 2.3]
It is triggered when data starts loading from local or remote CSV, JSON, or after the report was loaded. To track possible errors, use dataerror. To make sure that loading of the data was successful, use dataloaded.
Note For "microsoft analysis services" and "api" data source types, use loadingolapstructure.
pivot.on('loadingdata', function () {
alert('Loading data!');
});
Open the example on JSFiddle.