var dpk = new DayPilot.Kanban("dpk"); dpk.onCardMove = function(args) { args.preventDefault(); };
it is not working.
This issue should be fixed now in the latest sandbox build (8.3.2792):
https://javascript.daypilot.org/sandbox/
That one is for trial (Lite), right?
The latest Pro Edition I have found to download is 2726.
In the sandbox, you can find the latest development build of DayPilot Pro, but it's a trial version. The next official release will be available in a week or two.