collapseCell method
Collapses a specific node on the grid and charts.
Implementation
Future<void> collapseCell(String axisName, List<String> tuple,
[String? measureName]) async {
WebViewController apiController = await controller.future;
await apiController.runJavascript(
"flexmonster.collapseCell('$axisName',${jsonEncode(tuple)}${measureName == null ? "" : ",'$measureName'"})");
}