<docs>
---
order: 3
title:
  en-US: Selection and operation
  zh-CN: 选择和操作
---

## zh-CN

选择后进行操作，完成后清空选择，通过 `rowSelection.selectedRowKeys` 来控制选中项。

## en-US

To perform operations and clear selections after selecting some rows, use `rowSelection.selectedRowKeys` to control selected rows.

</docs>

<template>
  <div>
    <div style="margin-bottom: 16px">
      <a-button type="primary" :disabled="!hasSelected" :loading="loading" @click="start">
        Reload
      </a-button>
      <span style="margin-left: 8px">
        <template v-if="hasSelected">
          {{ `Selected ${selectedRowKeys.length} items` }}
        </template>
      </span>
    </div>
    <a-table
      :row-selection="{ selectedRowKeys: selectedRowKeys, onChange: onSelectChange }"
      :columns="columns"
      :data-source="data"
    />
  </div>
</template>
<script lang="ts">
import { computed, defineComponent, reactive, toRefs } from 'vue';

type Key = string | number;

interface DataType {
  key: Key;
  name: string;
  age: number;
  address: string;
}

const columns = [
  {
    title: 'Name',
    dataIndex: 'name',
  },
  {
    title: 'Age',
    dataIndex: 'age',
  },
  {
    title: 'Address',
    dataIndex: 'address',
  },
];

const data: DataType[] = [];
for (let i = 0; i < 46; i++) {
  data.push({
    key: i,
    name: `Edward King ${i}`,
    age: 32,
    address: `London, Park Lane no. ${i}`,
  });
}

export default defineComponent({
  setup() {
    const state = reactive<{
      selectedRowKeys: Key[];
      loading: boolean;
    }>({
      selectedRowKeys: [], // Check here to configure the default column
      loading: false,
    });
    const hasSelected = computed(() => state.selectedRowKeys.length > 0);

    const start = () => {
      state.loading = true;
      // ajax request after empty completing
      setTimeout(() => {
        state.loading = false;
        state.selectedRowKeys = [];
      }, 1000);
    };
    const onSelectChange = (selectedRowKeys: Key[]) => {
      console.log('selectedRowKeys changed: ', selectedRowKeys);
      state.selectedRowKeys = selectedRowKeys;
    };

    return {
      data,
      columns,
      hasSelected,
      ...toRefs(state),

      // func
      start,
      onSelectChange,
    };
  },
});
</script>