<docs>
---
order: 9
title:
  en-US: Tree data
  zh-CN: 树形数据展示
---

## zh-CN

表格支持树形数据的展示，当数据中有 `children` 字段时会自动展示为树形表格，如果不需要或配置为其他字段可以用 `childrenColumnName` 进行配置。
可以通过设置 `indentSize` 以控制每一层的缩进宽度。

## en-US

Display tree structure data in Table when there is field key `children` in dataSource, try to customize `childrenColumnName` property to avoid tree table structure.
You can control the indent width by setting `indentSize`.

</docs>

<template>
  <a-space align="center" style="margin-bottom: 16px">
    CheckStrictly:
    <a-switch v-model:checked="rowSelection.checkStrictly"></a-switch>
  </a-space>
  <a-table :columns="columns" :data-source="data" :row-selection="rowSelection" />
</template>
<script lang="ts">
import { defineComponent, ref } from 'vue';
const columns = [
  {
    title: 'Name',
    dataIndex: 'name',
    key: 'name',
  },
  {
    title: 'Age',
    dataIndex: 'age',
    key: 'age',
    width: '12%',
  },
  {
    title: 'Address',
    dataIndex: 'address',
    width: '30%',
    key: 'address',
  },
];

interface DataItem {
  key: number;
  name: string;
  age: number;
  address: string;
  children?: DataItem[];
}

const data: DataItem[] = [
  {
    key: 1,
    name: 'John Brown sr.',
    age: 60,
    address: 'New York No. 1 Lake Park',
    children: [
      {
        key: 11,
        name: 'John Brown',
        age: 42,
        address: 'New York No. 2 Lake Park',
      },
      {
        key: 12,
        name: 'John Brown jr.',
        age: 30,
        address: 'New York No. 3 Lake Park',
        children: [
          {
            key: 121,
            name: 'Jimmy Brown',
            age: 16,
            address: 'New York No. 3 Lake Park',
          },
        ],
      },
      {
        key: 13,
        name: 'Jim Green sr.',
        age: 72,
        address: 'London No. 1 Lake Park',
        children: [
          {
            key: 131,
            name: 'Jim Green',
            age: 42,
            address: 'London No. 2 Lake Park',
            children: [
              {
                key: 1311,
                name: 'Jim Green jr.',
                age: 25,
                address: 'London No. 3 Lake Park',
              },
              {
                key: 1312,
                name: 'Jimmy Green sr.',
                age: 18,
                address: 'London No. 4 Lake Park',
              },
            ],
          },
        ],
      },
    ],
  },
  {
    key: 2,
    name: 'Joe Black',
    age: 32,
    address: 'Sidney No. 1 Lake Park',
  },
];

const rowSelection = ref({
  checkStrictly: false,
  onChange: (selectedRowKeys: (string | number)[], selectedRows: DataItem[]) => {
    console.log(`selectedRowKeys: ${selectedRowKeys}`, 'selectedRows: ', selectedRows);
  },
  onSelect: (record: DataItem, selected: boolean, selectedRows: DataItem[]) => {
    console.log(record, selected, selectedRows);
  },
  onSelectAll: (selected: boolean, selectedRows: DataItem[], changeRows: DataItem[]) => {
    console.log(selected, selectedRows, changeRows);
  },
});

export default defineComponent({
  setup() {
    return {
      data,
      columns,
      rowSelection,
    };
  },
});
</script>