6500         root_id: 0,  property in module.exports.result
7750 		var parent = (parent_id && parent_id != gantt.config.root_id) ? gantt.getTask(parent_id) : false,
7943 			root = task_id !== undefined ? task_id : gantt.config.root_id;
7958 			root = task_id !== undefined ? task_id : gantt.config.root_id;
9927 		rootId: function() { return gantt.config.root_id; },
10264 			task.parent = this.config.root_id;
11413 		if (!this.isTaskExists(parent)) parent = this.config.root_id;
12918 				tasks.unshift({id: gantt.config.root_id, text: config.root_label || ""});
14340 			var id = firstTask ? firstTask.id : this.config.root_id;
14446 			}, gantt.config.root_id, this);
15039 		if (parent != gantt.config.root_id) {
15107 		if (id != gantt.config.root_id && gantt.isTaskExists(id)) {
16721 		var currentNode = gantt.config.root_id;
16759 		}, gantt.config.root_id, this);
19457 						mouseEvents.callHandler("click", "gantt_add", grid.$grid, [e, config.root_id]);
19496 					this.createTask(item, id ? id : gantt.config.root_id);