vue+element实现表格跨行或跨列合并

时间 2019-11-08

标签 vue+element vue element 实现表格跨行合并繁體版

原文原文链接

前言

vue+element用于pc后台管理系统比较多,因此后台管理系统通常以处理数据为主,数据结构的复杂程度变高,相对应的前端展现成本也提升,
有些产品经理或许会要求表格跨行或跨列合并,若是你正在想怎么实现,那就接着往下看
最新封装了一个表格合并和编辑插件:vue-split-table,戳一戳
效果图
html

element的2.x

(注意是2.X新加的方法)前端

1.span-method方法

能够实现合并行或列，vue

2.参数

方法的参数是一个对象，里面包含当前行row、当前列column、当前行号rowIndex、当前列号columnIndex四个属性。segmentfault

3.函数的返回数组

该函数能够返回一个包含两个元素的数组，第一个元素表明rowspan，第二个元素表明colspan。也能够返回一个键名为rowspan和colspan的对象数组

arraySpanMethod({ row, column, rowIndex, columnIndex }) {
        if (rowIndex % 2 === 0) {//判断条件能够设置成你想合并的行的起始位置
          if (columnIndex === 0) {//判断条件能够设置成你想合并的列的起始位置
            return [1, 2];
          } else if (columnIndex === 1) {
            return [0, 0];
         }
    }
 },

4.返回对象

return [1,2]也能够返回一个对象数据结构

return {
rowspan: 2,//实际上就是给td加上rowspan属性
colspan: 1//实际上就是给td加上colspan属性
};ide

5.贴上一个完整代码,能够直接拿去演示

<template>
  <div>
    <el-table
      :data="tableData6"
      :span-method="arraySpanMethod"
      border
      style="width: 100%">
      <el-table-column
        prop="id"
        label="ID"
        width="180">
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名">
      </el-table-column>
      <el-table-column
        prop="amount1"
        sortable
        label="数值 1">
      </el-table-column>
      <el-table-column
        prop="amount2"
        sortable
        label="数值 2">
      </el-table-column>
      <el-table-column
        prop="amount3"
        sortable
        label="数值 3">
      </el-table-column>
    </el-table>

    <el-table
      :data="tableData6"
      :span-method="objectSpanMethod"
      border
      style="width: 100%; margin-top: 20px">
      <el-table-column
        prop="id"
        label="ID"
        width="180">
      </el-table-column>
      <el-table-column
        prop="name"
        label="姓名">
      </el-table-column>
      <el-table-column
        prop="amount1"
        label="数值 1（元）">
      </el-table-column>
      <el-table-column
        prop="amount2"
        label="数值 2（元）">
      </el-table-column>
      <el-table-column
        prop="amount3"
        label="数值 3（元）">
      </el-table-column>
    </el-table>
  </div>
</template>

<script>
  export default {
    data() {
      return {
        tableData6: [{
          id: '12987122',
          name: '王小虎',
          amount1: '234',
          amount2: '3.2',
          amount3: 10
        }, {
          id: '12987123',
          name: '王小虎',
          amount1: '165',
          amount2: '4.43',
          amount3: 12
        }, {
          id: '12987124',
          name: '王小虎',
          amount1: '324',
          amount2: '1.9',
          amount3: 9
        }, {
          id: '12987125',
          name: '王小虎',
          amount1: '621',
          amount2: '2.2',
          amount3: 17
        }, {
          id: '12987126',
          name: '王小虎',
          amount1: '539',
          amount2: '4.1',
          amount3: 15
        }]
      };
    },
    methods: {
      arraySpanMethod({ row, column, rowIndex, columnIndex }) {
        console.log(row,column)
        if (row.id=='12987122') {
          if (columnIndex === 0) {
            return [2, 2];
          } 
          else if (columnIndex === 1) {
            return [0, 0];
          }
        }
      },

      objectSpanMethod({ row, column, rowIndex, columnIndex }) {
        if (columnIndex === 0) {
          if (rowIndex % 2 === 0) {
            return {
              rowspan: 2,
              colspan: 1
            };
          } else {
            return {
              rowspan: 0,
              colspan: 0
            };
          }
        }
      }
    }
  };
</script>

原生方法一(最简单实现td单元格拆分)

1.原理分析

直接在对应的td里面嵌套<table>的<tr>让后台对应返回一个数组,遍历便可实现单元格拆分函数

强烈推荐方法二,这个实现成本最低,也便添加复选框进行增删改查ui

2.贴上一个demo

直接能够演示编码

<table class="ground-route-table">
    <thead>
      <tr>
        <td>城市</td>
        <td>美食</td>
        <td>好玩的地方</td>
      </tr>
    </thead>
    <tbody>
      <tr>
        <td>北京</td>
        <td>北京烤鸭</td>
        <td>
            <table  class="ground-route-table-small">
                <tr>故宫</tr>
                <tr>颐和园</tr>
                <tr>长城</tr>
            </table>
        </td>
      </tr>
    </tbody>
  </table>
  <style>
    .ground-route-table,
.ground-route-table-samll {
  width: 100%;
  border: 1px solid #dfe6ec;
  border-collapse: collapse;
}
.ground-route-table td{
  border: 1px solid #dfe6ec;    
  }
  </style>

原生方法二

属性colspan和rowspan实现合并行或列

1.原生的做用

可能有些项目是使用的element1.x版本,若是忽然升级风险过高,我作这个就是,因此仍是利用原生的table
的colspan和rowspan

2.实现难点

原生的难点在于table都是经过循环产生的,若是直接经过设置类设置样式,这样表格就会变乱,由于v-for下面每一个td都建立了,因此要在v-for里面进行判断

3.那么问题来了?

colspan和rowspan的数据是应该是动态的,那么他们怎么动态绑定呢,可能会想到操做DOM,
可是这不是最好的方法,咱们能够经过自定义指令将属性与值关联起来

4.自定义指令

mergerows: {
    // 指令的定义
    inserted: function (el) {
      el.setAttribute('rowspan',3)
    }
  }

贴上详解:https://cn.vuejs.org/v2/guide...

5.小插曲

很高兴你还能看到这里,有啥问题能够一块儿交流,若是以为有点用,能够先收藏起来呢

6.贴上代码

<template>
<table class="ground-route-table">
    <thead>
      <tr>
        <td>城市</td>
        <td>班次编码</td>
        <td>车辆编码</td>
        <td>顺序</td>
        <td>装车点</td>
        <td>到车点</td>
        <td>最晚到达时间</td>
        <td>发车时间</td>
        <td>到车时间</td>
        <td>OMP配载代码</td>
        <td>工做日</td>
        <td>线路类型</td>
        <td>线路类型</td>
        <td>资源类型</td>
        <td>车牌号</td>
        <td>司机ID</td>
        <td>司机姓名</td>
        <td>司机电话</td>
        <td>路线执行日期</td>
      </tr>
    </thead>

    <tbody>
      <tr v-for="(routeList,index) in groundRouteDataEnd" :key="index">
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8"><el-checkbox></el-checkbox></td>
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8">{{routeList.groundRoute1}}</td>
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8">{{routeList.groundRoute2}}</td>
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8">{{routeList.groundRoute3}}</td>
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8">{{routeList.groundRoute4}}</td>
        <td>{{routeList.groundRoute5}}</td>
        <td>{{routeList.groundRoute6}}</td>
        <td>{{routeList.groundRoute7}}</td>
        <td>{{routeList.groundRoute8}}</td>
        <td>{{routeList.groundRoute9}}</td>
        <td>{{routeList.groundRoute10}}</td>
        <td>{{routeList.groundRoute11}}</td>
        <td>{{routeList.groundRoute12}}</td>
        <td>{{routeList.groundRoute13}}</td>
        <td v-mergerows v-if="index!=1&&index!=2&&index!=4&&index!=5&&index!=7&&index!=8">
          <el-button type="primary" size="mini">查看</el-button>
        </td>
      </tr>
    </tbody>
  </table>
    
</template>
<script>
export default {
  data() {
    return {
      groundRouteDataEnd: [
        {
          groundRoute1: "10",
          groundRoute2: "10",
          groundRoute3: "10",
          groundRoute4: "10",
          groundRoute5: "10",
          groundRoute6: "10",
          groundRoute7: "10",
          groundRoute8: "10",
          groundRoute9: "10",
          groundRoute10: "10",
          groundRoute11: "11"
        },
        {
          groundRoute1: "10",
          groundRoute2: "10",
          groundRoute3: "10",
          groundRoute4: "10",
          groundRoute5: "10",
          groundRoute6: "10",
          groundRoute7: "10",
          groundRoute8: "10",
          groundRoute9: "10",
          groundRoute10: "10",
          groundRoute11: "11"
        },
        {
          groundRoute1: "10",
          groundRoute2: "10",
          groundRoute3: "10",
          groundRoute4: "10",
          groundRoute5: "10",
          groundRoute6: "10",
          groundRoute7: "10",
          groundRoute8: "10",
          groundRoute9: "10",
          groundRoute10: "10",
          groundRoute11: "11"
        },
        {
          groundRoute1: "10",
          groundRoute2: "40",
          groundRoute3: "10",
          groundRoute4: "10",
          groundRoute5: "10",
          groundRoute6: "10",
          groundRoute7: "10",
          groundRoute8: "10",
          groundRoute9: "10",
          groundRoute10: "10",
          groundRoute11: "11"
        }
      ]
    };
  },
  directives: {
    mergerows: {
      // 指令的定义
      inserted: function(el) {
        el.setAttribute("rowspan", 3);
      }
    }
  }
};
</script>
  <style scoped>
.ground-route-table,
.ground-route-table-samll {
  width: 100%;
  border: 1px solid #dfe6ec;
  border-collapse: collapse;
}
.ground-route-table td{
  border: 1px solid #dfe6ec;    
  }
</style>