Hi shailendra,
For the surface chart, ChartDirector uses the data points to compute the surface and plot the surface. It does not plot or keep track of the data points, so there is no data point to click on the chart. See:
http://www.chartdir.com/forum/download_thread.php?bn=chartdir_support&thread=1375238916#N1375380718
Regards
Peter Kwan |