Highcharts gantt-chart: Not supporting toggle feature on Y axis with categories declaration on YAxis configuration

[gaikwadsagar71]

Expected behaviour

I want to implement "drag and drop" feature vertically on gantt chart. I am not able to achieve it without defining categories on YAxis. But if I declare categories on YAxis then the parent feature stops working.

Actual behaviour

Only supports the horizontal "drag and drop" feature. vertical "drag and drop" feature is not working.

Live demo with steps to reproduce

Want to implement vertical drag and drop functionality along with toggle functionality.
https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/gantt/demo/subtasks

Product version

highcharts-gantt: v8.2.0
draggable-points: v8.2.0

Affected browser(s)

Chrome.

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[karolkolodziej]

Thank you for sharing that idea.
As you might read in the documentation for now it is not supported, that is why marked this as a Feature Request.
Docs: Note that this is not supported for TreeGrid axes (the default axis type in Gantt charts)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions!

[pawellysy]

unstale

[TorsteinHonsi]

Minimal demo with tree grid axis: https://jsfiddle.net/highcharts/Lu91zavj/ . Just rename _categories to categories and the dragging will work.

[TorsteinHonsi]

The fix at first glance looks very simple. The draggable-points correctly sets the point.y value, but when treegrid axis is enabled, it insists on setting this value dynamically without checking if it existed previously.

Demo with the proposed fix: https://jsfiddle.net/highcharts/Lu91zavj/