I am now using RadCartesianChart's LineSeries to show tooltip. But when loading massive amount of data about 18866 record, UI becomes very slow to show tooltips and finally becomes freeze. Could you please help me how to solve this issue? Thanks.
Hello Thura Hein,
Thank you for the provided pictures.
Please, allow me to start by saying that we have an item logged in our feedback portal, which is related to improving the performance of the tooltip behavior with a large number of data points: ChartView: Make the GetDataContext method of the RadChartBase class public and virtual. I have increased the internal item's priority accordingly.
That said, you can check out the tips outlined in the following blog post: 5 Easy Steps Towards a Fast Chart. Note that the light rendering options do not support displaying a tooltip.
I hope you find this helpful. Let me know, if I can be of any further assistance.