onBeforeTaskDrag

fires after the user has pressed the mouse button and started dragging, but before dhtmlxGantt starts the drag-and-drop operation

boolean onBeforeTaskDrag(string|number id,string mode,Event e){ ... };

Parameters

idstring|numberthe task id
modestringthe drag-and-drop mode ("resize", "progress", "move", "ignore")
eEventa native event object

Returns

booleandefines whether the default action of the event will be triggered (true) or canceled (false)

Example

gantt.attachEvent("onBeforeTaskDrag", function(id, mode, e){
    //any custom logic here
    return true;
});

Related samples

Details

The event is blockable. Return false and the task will be backed to the initial position.

See also
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