@vijenderreddy,
rangeChanging seems to be working fine, please take a look at this JSFiddle. Also refer documentation on rangeChaging for more information and live example.
If you are still facing issue, kindly create a JSFiddle reproducing the issue and share it with us so that we can run it locally at our end to understand the scenario better and help you out.
—
Vishwas R
Team CanvasJS
