Fired when the moving is finished (the column is dropped at the target position), after the column is actually moved.
DayPilot.Kanban.onColumnMoved(args);
The source data object is accessible as args.column.data.
<div id="dp"></div>
<script type="text/javascript">
var dp = new DayPilot.Kanban("dp");
// ...
dp.columnMoveHandling = "Update";
dp.onColumnMoved = function(args) {
dp.message("Column " + args.column.data.name + " was moved.");
};
dp.init();
</script>