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onLightboxDelete

Description​

Fires when the user clicks on the 'Delete' button in the lightbox

onLightboxDelete: (id: string | number) => boolean;

Parameters​

  • id - (required) string | number - the task id (the task opened in the lightbox)

Returns​

  • result - (boolean) - defines whether the default action of the event will be triggered (true) or canceled (false)

Example​

gantt.attachEvent("onLightboxDelete", function(id){
    const task = gantt.getTask(id);
    if (task.duration > 60){
        alert("The duration is too long. Please, try again");
        return false;
    }
    return true;
})

Details​

The event is blockable. Return false to cancel the 'delete' operation and keep the lightbox open.