getNext

提供下一个项目的 id，无论其嵌套层级如何，无论是否属于同一层级或不同层级

id

string | number

任务的 id

string | number

下一个项目的 id

Example

const tasks = {
  data:[
     {id:"p_1", text:"Project #1", start_date:"01-04-2013", duration:18, 
     open:true},
     {id:"t_1", text:"Task #1", start_date:"02-04-2013", duration:8,
     parent:"p_1"},
     {id:"t_2", text:"Task #2", start_date:"11-04-2013", duration:8,
     parent:"p_1"}
   ]
};
gantt.init("gantt_here");
gantt.parse(tasks);
 
gantt.getNext("p_1"); -> "t_1" gantt.getNext("t_1"); -> "t_2" gantt.getNext("t_2"); -> null

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