Skip to main content


fires before the user has finished dragging an item and released the mouse button

beforeDrop: (data: object, events: MouseEvent) => void | boolean;


  • data: object - data object. It contains the following parameters:
    • start: string | number - the id of an item, from which the dragging process has started
    • source: array - an array with ids of dragged items
    • target: string | number - the id of a potential target item
  • events: MouseEvent - a native HTML event object


Return false to block the default action; otherwise, true.

Example"beforeDrop", function(data, events) {
// your logic here
return false;

Related sample: Dataview. Events

Change log:

added in v7.0