vue+elementUI实现树形表格

/**
* @Author: jianglei
* @Date:  2017-10-12 12:06:49
*/
'use strict'
import Vue from 'vue'
export default function treeToArray(data, expandAll, parent = null, level = null) {
 let tmp = []
 Array.from(data).forEach(function(record) {
  if (record._expanded === undefined) {
   Vue.set(record, '_expanded', expandAll)
  }
  let _level = 1
  if (level !== undefined && level !== null) {
   _level = level + 1
  }
  Vue.set(record, '_level', _level)
  // 如果有父元素
  if (parent) {
   Vue.set(record, 'parent', parent)
  }
  tmp.push(record)
  if (record.children && record.children.length > 0) {
   const children = treeToArray(record.children, expandAll, record, _level)
   tmp = tmp.concat(children)
  }
 })
 return tmp
}

import treeTable from "./TreeTable";

components: { treeTable },
data() {
  return {
   columns: [
    {
     text: "事件",
     value: "event",
     width: 200
    },
    {
     text: "ID",
     value: "id"
    },
    {
     text: "时间线",
     value: "timeLine"
    },
    {
     text: "备注",
     value: "comment"
    }
   ],
   data: [
    {
     id: 0,
     event: "事件1",
     timeLine: 50,
     comment: "无"
    },
    {
     id: 1,
     event: "事件1",
     timeLine: 100,
     comment: "无",
     children: [
      {
       id: 2,
       event: "事件2",
       timeLine: 10,
       comment: "无"
      },
      {
       id: 3,
       event: "事件3",
       timeLine: 90,
       comment: "无",
       children: [
        {
         id: 4,
         event: "事件4",
         timeLine: 5,
         comment: "无"
        },
        {
         id: 5,
         event: "事件5",
         timeLine: 10,
         comment: "无"
        },
        {
         id: 6,
         event: "事件6",
         timeLine: 75,
         comment: "无",
         children: [
          {
           id: 7,
           event: "事件7",
           timeLine: 50,
           comment: "无",
           children: [
            {
             id: 71,
             event: "事件71",
             timeLine: 25,
             comment: "xx"
            },
            {
             id: 72,
             event: "事件72",
             timeLine: 5,
             comment: "xx"
            },
            {
             id: 73,
             event: "事件73",
             timeLine: 20,
             comment: "xx"
            }
           ]
          },
          {
           id: 8,
           event: "事件8",
           timeLine: 25,
           comment: "无"
          }
         ]
        }
       ]
      }
     ]
    }
   ]
  };
 },