beforeColumnDrag
fires before dragging of a column has started
beforeColumnDrag: (data: object, events: MouseEvent) => void | boolean;
Parameters:
data: object
- data object. It contains the following parameters:start: string | number
- the id of a column, from which the dragging process has startedsource: array
- an array with ids of dragged columnstarget: string | number
- the id of a potential target column
events: MouseEvent
- a native HTML event object
Returns:
Return false
to prevent dragging of a column; otherwise, true
.
Example
treegrid.events.on("beforeColumnDrag", function(data, events){
// your logic here
return false;
});
Change log:
- Before v7.0, the event took one parameter - the column id.
- Starting from v7.0, the event takes two parameters: data and e.
- The event was added in v6.5