当NDataTable同时使用selection与summary时，汇总栏的selection列不能自定义内容

[experience9091]

Clear and concise description of the problem

当NDataTable同时使用selection与summary时，汇总栏的selection列是空白内容。

Suggested solution

可否自定义汇总栏的selection列内容，比如我想将“汇总”这两个文字放在这里

Alternative

No response

Additional context

No response

Validations

• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[jahnli]

Provide a based on Playground or CodeSandbox or stackblitz `s MinimalReproducible Example

[experience9091]

抱歉没能把问题描述清楚，我所实现的功能如下：

<script setup lang="ts">
import { ref } from 'vue';
import { NDataTable } from 'naive-ui';
import type { DataTableCreateSummary, DataTableRowKey } from 'naive-ui';

const columns = [
  {
    type: 'selection',
    fixed: 'left'
  },
  {
    title: '数据1',
    key: 'dataNum1'
  },
  {
    title: '数据2',
    key: 'dataNum2'
  }
];

const mockData = ref([
  {
    dataNum1: 11,
    dataNum2: 55
  },
  {
    dataNum1: 5,
    dataNum2: 5
  }
]);

/** 表格汇总 */
const summary: DataTableCreateSummary = pageData => {
  const result = {};
  columns.forEach(item => {
    result[item.key] = {
        value: (pageData as unknown as NaiveWidgetTypes.RowData[]).reduce((prevValue, row) => {
            return prevValue + row[item.key] || 0;
        }, 0)
    };
  });
  return result;
};
</script>

<template>
    <NDataTable
        :columns="columns"
        :data="mockData"
        size="small"
        :single-line="false"
        :summary="summary"
    />
</template>

[experience9091]

我最终的目的是想在selection列的summary行显示"合计"或者"汇总"的字样，结果并没有成功。
下面是我的代码，我尝试将selection加上key，并将summary进行修改

<script setup lang="ts">
import { ref } from 'vue';
import { NDataTable } from 'naive-ui';
import type { DataTableCreateSummary, DataTableRowKey } from 'naive-ui';

const columns = [
  {
    type: 'selection',
    key: 'no',
    fixed: 'left'
  },
  {
    title: '数据1',
    key: 'dataNum1'
  },
  {
    title: '数据2',
    key: 'dataNum2'
  }
];

const mockData = ref([
  {
    dataNum1: 11,
    dataNum2: 55
  },
  {
    dataNum1: 5,
    dataNum2: 5
  }
]);

/** 表格汇总 */
const summary: DataTableCreateSummary = pageData => {
  const sum = key => {
    return (pageData as unknown as NaiveWidgetTypes.RowData[]).reduce((prevValue, row) => {
      return prevValue + row[key] || 0;
    }, 0);
  };
  return {
    no: { value: '合计' },
    dataNum1: { value: sum('dataNum1') },
    dataNum2: { value: sum('dataNum2') },
  };
};
</script>

<template>
    <NDataTable
        :columns="columns"
        :data="mockData"
        size="small"
        :single-line="false"
        :summary="summary"
    />
</template>

[experience9091]

我最终的解决办法是使用了“序号”列，在序号列上添加的文字。
但这并不是最好的解决办法，毕竟不是所有的使用场景都需要序号，目前的情况是要添加“合计”文字，就必须使用其他列