• iview表格动态数据实现合并功能


    需求原型:

      

    代码实现:

    html部分:

    <Row>
                    <Col span="24">
                        <Table id="tab" stripe border :columns="columns1" :data="formData.dataTable" :span-method="handleSpan"></Table>
                    </Col>
                </Row>

          
        import {MsgType, PublicType } from '../../libs/constants';
     
          //data函数
          data(){
                return {
                    loadingShow:false, //页面加载loading效果
                    title:'考核指标设置', //表头名字
                    formData:{
                        dataTable:[]
                    }, //表单信息
                    columns1: [ //表头
                        {key: 'contentType',170,
                            renderHeader: (h, params) => {
                                return h('span', [
                                    h('em', {
                                        style:{
                                            'color':'red'
                                        },
                                    }, '* '),
                                    h('span', {
                                    }, '考核内容')
                                ]);
                            },
                        },
                        {key: 'indexName',170,
                            renderHeader: (h, params) => {
                                return h('span', [
                                    h('em', {
                                        style:{
                                            'color':'red'
                                        },
                                    }, '* '),
                                    h('span', {
                                    }, '考评指标')
                                ]);
                            },
                        },
                        {key: 'scoreRatio',100,
                            renderHeader: (h, params) => {
                                return h('span', [
                                    h('em', {
                                        style:{
                                            'color':'red'
                                        },
                                    }, '* '),
                                    h('span', {
                                    }, '权重(%)')
                                ]);
                            },
                        },
                        {key: 'evalPoint',
                            renderHeader: (h, params) => {
                                return h('span', [
                                    h('em', {
                                        style:{
                                            'color':'red'
                                        },
                                    }, '* '),
                                    h('span', {
                                    }, '考评要点级标准')
                                ]);
                            },
                        },
                        {title: '是否直接取值',key: 'isFetch',140,
                            render:(h,params)=>{
                                let isFetch = params.row.isFetch
                                if(isFetch == 'Y'){
                                    return h('span',{
                                    },'是');
                                }else if(isFetch == 'N'){
                                    return h('span',{
                                    },'否');
                                }
                            }
                        },
                        {title: '排序',key: 'showOrder', 80}
                    ],
                    spanArr:[],// 合并单元格
                }
            },
    methods中的方法:
          //获取详情数据
                getDetatil(id){
                    let data={
                        id:id
                    };
                    this.loadingShow = true;
                    this.$api.evalTargetSetting.getDetailData(data).then(res=>{
                        if(res.result == MsgType.SUCCESS){
                            let list = res.resultData || {};
                            this.formData = list;
                            this.title = list.evalName;
                            this.formData.createDate = this.$moment(list.createDate).format("YYYY-MM-DD HH:mm:ss");
                            this.formData.dataTable = list.evaluationIndexDetailList;
                            this.spanArr = PublicType.getMergeNum(list.evaluationIndexDetailList,'contentType');
                        }
                        this.loadingShow = false;
                    }).catch(error=>{
                        this.loadingShow = false;
                    })
                },
                //合并单元格
                //row: 当前行
                // column: 当前列
                // rowIndex: 当前行索引
                // columnIndex: 当前列索引
                handleSpan({ row, column, rowIndex, columnIndex }){
                    if (columnIndex === 0) {
                    // 二维数组存储的数据 取出
                    const _row = this.spanArr[rowIndex]
                    const _col = _row > 0 ? 1 : 0
                    return {
                        rowspan: _row,
                        colspan: _col
                    }
                    //不可以return {rowspan:0, colspan: 0} 会造成数据不渲染, 也可以不写else,eslint过不了的话就返回false
                    } else {
                        return false
                    }
                },

    constants.js文件中的 getMergeNum方法:

    /*合并单元格
      data:数据列表
      contentType:将要合并的对比字段
      */
      getMergeNum (data, contentType){
        //页面展示的数据,不一定是全部的数据,所以每次都清空之前存储的 保证遍历的数据是最新的数据。以免造成数据渲染混乱
        let spanArr = []
        let pos = 0
        //遍历数据
        data.forEach((item, index) => {
          //判断是否是第一项
          if (index === 0) {
            spanArr.push(1)
            pos = 0
          } else {
            //不是第一项时,就根据标识去存储
            if (data[index][contentType] === data[index-1][contentType]) {
              // 查找到符合条件的数据时每次要把之前存储的数据+1
              spanArr[pos] += 1
              spanArr.push(0)
            } else {
              // 没有符合的数据时,要记住当前的index
              spanArr.push(1)
              pos = index
            }
          }
         })
        return spanArr  
      },
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  • 原文地址:https://www.cnblogs.com/chenxiaomei0104/p/14480574.html
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