Hi!
I'm finally back to working on this. I wrote my callback function to check for overlapping series data points. It is firing as expected on drop. However, when I find an overlap and wish to stop the drop, I return 'false' as the API doc indicates. Yet, this does not stop the default drop behavior of highcharts. V9.1.2 API doc says, 'To stop the default drop action, return false.'
I was expecting highcharts gantt to return the data point to the original start/end location. For example, if the point originally started 7/1/2021 and ended 7/5/2021, and was dropped at start 7/2/2021 and end 7/6/2021, I was expecting that returning false would result in the bar being at the original start and end. Can you clarify, please?
A secondary thought that I had was whether the series.gantt.dropDrop.guidebox.liveRedraw has anything to do with this. I have not set a value for this, and the API doc indicated that the value will be defaulted to "true" which the API doc says will update points as they are dragged.
https://api.highcharts.com/gantt/series ... int.events
Thanks for the guidance.