beforeDrag
fires before dragging of an item has started
beforeDrag: (data: IDragInfo, events: MouseEvent, ghost: HTMLElement) => void | boolean;
Parameters:
data: object
- data objectevents: MouseEvent
- a native HTML event objectghost: HTMLElement
- an HTML element
Returns:
Return false
to block dragging of an item; otherwise, true
.
Example
dataview.events.on("beforeDrag", function(data, events) {
// your logic here
return false;
});
Related sample: Dataview. Events
The data
object 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 |
Change log:
added in v7.0