基于VUE框架怎么做树形表格，过程及代码是什么-群英

上一篇：SpringBoot与Vue的前后端合并部署的具体操作是什么下一篇：JS中怎么用正则表达式的方法来筛选年月日

很多朋友都对“基于VUE框架怎么做树形表格，过程及代码是什么”的内容比较感兴趣，对此小编整理了相关的知识分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获，那么感兴趣的朋友就继续往下看吧！

本文实例为大家分享了vue+element UI实现树形表格的具体代码，供大家参考，具体内容如下

一、在component文件夹下新建如下treeTable文件夹，里面有2个文件：

eval.js:将数据转换成树形数据

/**
* @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
}

index.vue:树形表格组件

<template>
 <el-table :data="formatData" :row-style="showRow" v-bind="$attrs">
  <el-table-column v-if="columns.length===0" width="150">
   <template slot-scope="scope">
    <span v-for="space in scope.row._level" :key="space" class="ms-tree-space"/>
    <span v-if="iconShow(0,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">
     <i v-if="!scope.row._expanded" class="el-icon-plus"/>
     <i v-else class="el-icon-minus"/>
    </span>
    {{ scope.$index }}
   </template>
  </el-table-column>
  <el-table-column v-for="(column, index) in columns" v-else :key="column.value" :label="column.text" :width="column.width">
   <template slot-scope="scope">
    <!-- Todo -->
    <!-- eslint-disable-next-line vue/no-confusing-v-for-v-if -->
    <span v-for="space in scope.row._level" v-if="index === 0" :key="space" class="ms-tree-space"/>
    <span v-if="iconShow(index,scope.row)" class="tree-ctrl" @click="toggleExpanded(scope.$index)">
     <i v-if="!scope.row._expanded" class="el-icon-plus"/>
     <i v-else class="el-icon-minus"/>
    </span>
    {{ scope.row[column.value] }}
   </template>
  </el-table-column>
  <slot/>
 </el-table>
</template>
 
<script>
/**
 Auth: Lei.j1ang
 Created: 2018/1/19-13:59
*/
import treeToArray from "./eval";
export default {
 name: "TreeTable",
 props: {
  /* eslint-disable */
  data: {
   type: [Array, Object],
   required: true
  },
  columns: {
   type: Array,
   default: () => []
  },
  evalFunc: Function,
  evalArgs: Array,
  expandAll: {
   type: Boolean,
   default: false
  }
 },
 computed: {
  // 格式化数据源
  formatData: function() {
   let tmp;
   if (!Array.isArray(this.data)) {
    tmp = [this.data];
   } else {
    tmp = this.data;
   }
   const func = this.evalFunc || treeToArray;
   const args = this.evalArgs
    ? Array.concat([tmp, this.expandAll], this.evalArgs)
    : [tmp, this.expandAll];
   return func.apply(null, args);
  }
 },
 methods: {
  showRow: function(row) {
   const show = row.row.parent
    ? row.row.parent._expanded && row.row.parent._show
    : true;
   row.row._show = show;
   return show
    ? "animation:treeTableShow 1s;-webkit-animation:treeTableShow 1s;"
    : "display:none;";
  },
  // 切换下级是否展开
  toggleExpanded: function(trIndex) {
   const record = this.formatData[trIndex];
   record._expanded = !record._expanded;
  },
  // 图标显示
  iconShow(index, record) {
   return index === 0 && record.children && record.children.length > 0;
  }
 }
};
</script>
<style rel="stylesheet/css">
@keyframes treeTableShow {
 from {
  opacity: 0;
 }
 to {
  opacity: 1;
 }
}
@-webkit-keyframes treeTableShow {
 from {
  opacity: 0;
 }
 to {
  opacity: 1;
 }
}
</style>
 
<style scoped>
.ms-tree-space {
 position: relative;
 top: 1px;
 display: inline-block;
 font-style: normal;
 font-weight: 400;
 line-height: 1;
 width: 18px;
 height: 14px;
}
.ms-tree-space::before {
 content: "";
}
.processContainer {
 width: 100%;
 height: 100%;
}
table td {
 line-height: 26px;
}
.tree-ctrl {
 position: relative;
 cursor: pointer;
 color: #2196f3;
 margin-left: -18px;
}
</style>

二、在需要的地方引入该组件

例如：在component文件夹下新建a.vue:

<tree-table :data="data" :columns="columns" border/>

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"
          }
         ]
        }
       ]
      }
     ]
    }
   ]
  };
 },

以上就是关于“基于VUE框架怎么做树形表格，过程及代码是什么”的相关知识，感谢各位的阅读，想要掌握这篇文章的知识点还需要大家自己动手实践使用过才能领会，如果想了解更多相关内容的文章，欢迎关注群英网络，小编每天都会为大家更新不同的知识。