el-table实现嵌套表格的展示功能(完整代码)

目录

• 需求
• 实现
• 实现思路

需求

一个表单中存在子表

列表返回格式

实现

实现思路

el-table中在嵌套一个el-table，这样数据格式就没问题了，主要就是样式

将共同的列放到一列中，通过渲染自定义表头render-header，将表头按照合适的宽度渲染出来

 <el-table-column
   prop="table"
   label="子表"
   class-name="has-child"
   :render-header="renderHeader"
   :width="childColumn.length * 120 + 2 + 'px'"
 >
   <template slot-scope="scope">
     <el-table
       border
       :data="scope.row.details"
       class="child-table"
       :show-header="false"
     >
       <el-table-column
         prop="startDate"
         align="center"
         label="起始日期"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="endDate"
         align="center"
         label="结束日期"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="applyDay"
         align="center"
         label="申请天数"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="destination"
         align="center"
         label="目的地"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="transportation"
         align="center"
         label="交通方式"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="businessTripReason"
         align="center"
         label="出差事由"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="returnDate"
         align="center"
         label="返程日期"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="actualDay"
         align="center"
         label="实际出差天数"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="subsidyDay"
         align="center"
         label="差补天数"
         width="120px"
       ></el-table-column>
       <el-table-column
         prop="remark"
         align="center"
         label="备注"
         width="120px"
       ></el-table-column>
     </el-table>
   </template>
 </el-table-column>

根据数据渲染表头

      childColumn: [
        {
          label: "起始日期",
          width: "120px",
        },
        {
          label: "结束日期",
          width: "120px",
        },
        {
          label: "申请天数",
          width: "120px",
        },
        {
          label: "目的地",
          width: "120px",
        },
        {
          label: "交通方式",
          width: "120px",
        },
        {
          label: "出差事由",
          width: "120px",
        },
        {
          label: "返程日期",
          width: "120px",
        },
        {
          label: "实际出差天数",
          width: "120px",
        },
        {
          label: "差补天数",
          width: "120px",
        },
        {
          label: "备注",
          width: "120px",
        },
      ],
    /**
     * @description 渲染子表
     */
    renderHeader(h, { column, $index }) {
      const childTable = this.childColumn.map((item) => {
        return h(
          "div",
          {
            style: {
              width: item.width,
              padding: "0 10px",
              textAlign: "center",
              flexShrink: 0,
              flexGrow: 0,
            },
          },
          item.label
        );
      });
      return h(
        "div",
        {
          class: ["child-head"],
        },
        childTable
      );
    },

调样式，慢慢调到合适就行

.has-child {
  padding: 0px !important;
  // display: none;
  & > .cell {
    padding: 0 !important;
  }
  ::before {
    height: 0;
  }
  .child-table {
    background-color: transparent;
    .cell{
      line-height: 34px;
    }
  }
  .el-table--enable-row-hover .el-table__body tr:hover > td.el-table__cell {
    background-color: transparent;
  }
  .el-table__body tr.current-row > td.el-table__cell,
  .el-table__body tr.selection-row > td.el-table__cell {
    background-color: transparent;
  }
  tr {
    background-color: transparent;
  }
  .child-head {
    display: flex;
  }
}

完整代码

<template>
<div>
<Search :config="searchConfig" @search="search">
<el-button type="primary" @click="addItem" icon="el-icon-plus"
>新增</el-button
>
</Search>
<el-table
border
:data="tableData"
v-loading="loading"
class="el-child-table"
>
<el-table-column
prop="applyDate"
label="申请日期"
align="center"
width="120px"
>
</el-table-column>
<el-table-column
prop="nickName"
label="申请人"
align="center"
width="140px"
>
</el-table-column>
<el-table-column
prop="deptName"
label="申请部门"
align="center"
width="120px"
>
</el-table-column>
<el-table-column
prop="table"
label="子表"
class-name="has-child"
:render-header="renderHeader"
:width="childColumn.length * 120 + 2 + 'px'"
>
<template slot-scope="scope">
<el-table
border
:data="scope.row.details"
class="child-table"
:show-header="false"
>
<el-table-column
prop="startDate"
align="center"
label="起始日期"
width="120px"
></el-table-column>
<el-table-column
prop="endDate"
align="center"
label="结束日期"
width="120px"
></el-table-column>
<el-table-column
prop="applyDay"
align="center"
label="申请天数"
width="120px"
></el-table-column>
<el-table-column
prop="destination"
align="center"
label="目的地"
width="120px"
></el-table-column>
<el-table-column
prop="transportation"
align="center"
label="交通方式"
width="120px"
></el-table-column>
<el-table-column
prop="businessTripReason"
align="center"
label="出差事由"
width="120px"
></el-table-column>
<el-table-column
prop="returnDate"
align="center"
label="返程日期"
width="120px"
></el-table-column>
<el-table-column
prop="actualDay"
align="center"
label="实际出差天数"
width="120px"
></el-table-column>
<el-table-column
prop="subsidyDay"
align="center"
label="差补天数"
width="120px"
></el-table-column>
<el-table-column
prop="remark"
align="center"
label="备注"
width="120px"
></el-table-column>
</el-table>
</template>
</el-table-column>
<el-table-column
prop="processStatusName"
width="120px"
label="状态"
align="center"
>
</el-table-column>
<el-table-column label="操作" align="center" width="100px" fixed="right">
<template slot-scope="{ row }">
<!-- 1、状态为被退回  2、申请人为当前登陆人 -->
<el-button
v-if="row.approveJurisdiction == 1"
type="text"
@click="approval(row)"
>审批</el-button
>
<el-button
type="text"
@click="check(row)"
v-if="row.checkJurisdiction == 1"
>核定</el-button
>
<el-button
v-if="
row.processStatusName == '被退回' &&
row.nickName === $store.state.user.nickName
"
type="text"
@click="editItem(row)"
>修改</el-button
>
<el-button type="text" @click="viewItem(row)">查看</el-button>
</template>
</el-table-column>
</el-table>
<pagination
:total="pageInfo.total"
:page.sync="pageInfo.pageNum"
:limit.sync="pageInfo.pageSize"
@pagination="getList"
/>
<DialogForm ref="dialogFormRef" @success="submitSuccess"></DialogForm>
</div>
</template>
<script>
import Search from "@/components/Search/index.vue";
import DialogForm from "./components/form.vue";
import { checkRole } from "@/utils/permission";
import {
apiGetBusinessTripList,
apiGetStatusOption,
} from "@/api/businessTrip/index";
export default {
name: "BusinessTrip",
components: {
Search,
DialogForm,
},
data() {
return {
searchConfig: [
{
label: "申请日期",
prop: "publishTime",
type: "daterange",
},
{
type: "select",
label: "状态",
prop: "processStatus",
option: [],
},
{
type: "input",
label: "模糊查询",
prop: "queryCondition",
},
],
pageInfo: {
pageNum: 1,
pageSize: 10,
total: 0,
},
tableData: [],
childColumn: [
{
label: "起始日期",
width: "120px",
},
{
label: "结束日期",
width: "120px",
},
{
label: "申请天数",
width: "120px",
},
{
label: "目的地",
width: "120px",
},
{
label: "交通方式",
width: "120px",
},
{
label: "出差事由",
width: "120px",
},
{
label: "返程日期",
width: "120px",
},
{
label: "实际出差天数",
width: "120px",
},
{
label: "差补天数",
width: "120px",
},
{
label: "备注",
width: "120px",
},
],
disabled: true,
currentItem: {},
searchForm: {},
loading: false,
};
},
mounted() {
this.getStatusOption();
this.toApproval();
},
activated() {
this.getList();
this.toApproval();
},
methods: {
checkRole,
/**
* @description 从首页过来自动打开弹窗
*/
toApproval() {
const id = this.$route.query.approvalId;
const jumpType = this.$route.query.jumpType;
this.$nextTick(() => {
if (jumpType == 21) {
this.$refs.dialogFormRef.open("审批", id);
} else if (jumpType == 22) {
this.$refs.dialogFormRef.open("核定", id);
}
});
},
search(form) {
this.searchForm = form;
this.getList();
},
getList() {
this.loading = true;
const params = {
...this.searchForm,
...this.pageInfo,
startApplyDate:
this.searchForm.publishTime && this.searchForm.publishTime[0],
endApplyDate:
this.searchForm.publishTime && this.searchForm.publishTime[1],
};
Reflect.deleteProperty(params, "publishTime");
apiGetBusinessTripList(params)
.then((response) => {
this.tableData = response.data.records;
this.pageInfo.total = response.data.total;
})
.finally(() => {
this.loading = false;
});
},
/**
* @description 获取流程状态下拉
*/
getStatusOption() {
apiGetStatusOption().then((response) => {
this.searchConfig[1].option = response.data.map((item) => {
return {
label: item.name,
value: item.id,
};
});
});
},
addItem() {
this.$refs.dialogFormRef.open("新增");
},
approval(row) {
this.$refs.dialogFormRef.open("审批", row.id);
},
check(row) {
this.$refs.dialogFormRef.open("核定", row.id);
},
editItem(row) {
this.$refs.dialogFormRef.open("修改", row.id);
},
viewItem(row) {
this.$refs.dialogFormRef.open("详情", row.id);
},
/**
* @description 渲染子表
*/
renderHeader(h, { column, $index }) {
const childTable = this.childColumn.map((item) => {
return h(
"div",
{
style: {
width: item.width,
padding: "0 10px",
textAlign: "center",
flexShrink: 0,
flexGrow: 0,
},
},
item.label
);
});
return h(
"div",
{
class: ["child-head"],
},
childTable
);
},
submitSuccess() {
this.$router.replace({ path: "/businessTrip", query: {} });
this.getList();
},
},
};
</script>
<style lang="scss" scoped></style>

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