vue+element-ui table encapsulation tag uses slot slot tag

We know that many systems require various tags to be added to the table to mark some attributes. Adding tags in element-ui is very simple. The most important thing is to use the slot feature of vue. First understand what a slot is.

Slot

Save the official complicated explanation and code. The meaning of slot is simply to leave a placeholder somewhere in the sub-component. , when the parent component uses this child component, you can customize the appearance of the placeholder, which may be a title, a button, or even a table or a form.

Why do we need slots? The reason why we extracted components is because there is too much reusable code. When using reusable components, copying and pasting is greatly reduced. Imagine there are two components. Most of them are the same, except for one part. At this time, there is no need to repeat other parts for this place. When we have the slot, we can extract the common parts of the two components, and then replace the different part with a slot. When calling later, we can only write the code for this part. This is in line with our componentization thinking and saves a lot of work.

element-table gets row information

In, use slot-scope to get the current row information

<template slot-scope="scope" ></template>

• scope.$index Get the index
• scope.row Get the current row (object)

Use the slot

In the table data, add tag:true to an attribute where the label is to be rendered. When looping <el-table-column>, the setting is encountered If you set the tag attribute, you will enter this slot. You can customize the content to be presented in the tag column by calling the parent component of this component.

In the table component

<p class="table-content">
    <el-table
        :data="list"
        class="mt-10"
        fit
        stripe
        empty-text="暂无数据"
        :highlight-current-row="true"
    >
        <el-table-column
            v-for="(item, index) in table_title"
            :key="index"
            :prop="item.prop"
            :label="item.label"
            :width="item.width?item.width:null"
            :min-width="item.minwidth?item.minwidth:null"
            :sortable="item.sortable?item.sortable:false"
            :align="item.columnAlign"
            :header-align="item.titleAlign"
        >
            <template slot-scope="scope">
                <template v-if="item.tag">
                    <slot name="tags" :scope="scope.row"></slot>
                </template>
                <span v-else>{{scope.row[item.prop]}}</span>
            </template>
        </el-table-column>
    </el-table>
</p>

How to loop<el-table>The content and title are as shown in the above code

In the parent component that references the table component

<table-page
    :list="listData"
    :table_title="table_title">
    <template v-slot:tags="scope">
        <el-tag
          v-if="scope.scope.tag == 1"
          size="small"
          type="primary"
          >tag1
        </el-tag>
        <el-tag
          v-else-if="scope.scope.tag == 2"
          size="small"
          type="warning"
          >tag2
        </el-tag>
        <el-tag
          v-else-if="scope.scope.tag == 3"
          size="small"
          type="success"
          >tag3
        </el-tag>
    </template>
</table-page>

The table is used Data

table_title

[
  {
    prop: 'id',
    label: '编号',
    width: '100',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
  {
    prop: 'date',
    label: '日期',
    width: '150',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
  {
    prop: 'name',
    label: '姓名',
    width: '120',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
  {
    prop: 'province',
    label: '省份',
    minwidth: '120',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true,
    isEdit: true
  },
  {
    prop: 'city',
    label: '市区',
    minwidth: '120',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
  {
    prop: 'address',
    label: '地址',
    minwidth: '300',
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
  {
    prop: 'auditflag',
    label: '状态',
    minwidth: '80px',
    tag: true,
    titleAlign: 'center',
    columnAlign: 'center',
    sortable:true
  },
];

listData

 [
    {
        id: 1,
        date: '2016-05-02',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1518 弄',
        zip: 200333,
        tag: "1"
    }, {
        id: 2,
        date: '2016-05-04',
        name: '王小',
        province: '北京',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1517 弄',
        zip: 200333,
        tag: "2"
    }, {
        id: 3,
        date: '2016-05-01',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1519 弄',
        zip: 200333,
        tag: "3"
    }, {
        id: 4,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "1"
    }, {
        id: 5,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "2"
    }, {
        id: 6,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "3"
    }, {
        id: 7,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "1"
    }, {
        id: 8,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "2"
    }, {
        id: 9,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "3"
    }, {
        id: 10,
        date: '2016-05-03',
        name: '王小虎',
        province: '上海',
        city: '普陀区',
        address: '上海市普陀区金沙江路 1516 弄',
        zip: 200333,
        tag: "1"
    }
],复制代码

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