AntDesignTable如何计算每个相似行的列值总和?
创始人
2024-11-07 14:31:55
0

可以通过遍历每一行并计算相似行的列值总和来解决此问题。具体步骤如下:

  1. 用Ant Design Table展示数据。
import React, { useState } from "react";
import { Table } from "antd";

const dataSource = [
  { key: "1", name: "John", age: 32, address: "New York" },
  { key: "2", name: "Mike", age: 28, address: "London" },
  { key: "3", name: "Mary", age: 25, address: "Tokyo" },
  { key: "4", name: "Sarah", age: 36, address: "Paris" },
  { key: "5", name: "Bob", age: 21, address: "Singapore" }
];

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

const ExampleTable = () => {
  return (
    
  );
};

export default ExampleTable;
  1. 添加一个按钮来计算列值总和。
import React, { useState } from "react";
import { Table, Button } from "antd";

const dataSource = [
  { key: "1", name: "John", age: 32, address: "New York" },
  { key: "2", name: "Mike", age: 28, address: "London" },
  { key: "3", name: "Mary", age: 25, address: "Tokyo" },
  { key: "4", name: "Sarah", age: 36, address: "Paris" },
  { key: "5", name: "Bob", age: 21, address: "Singapore" }
];

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

const ExampleTable = () => {
  const [data, setData] = useState(dataSource);
  const [totalAge, setTotalAge] = useState(0);

  const calculateAgeTotal = () => {
    let ageTotal = 0;

    Object.values(data.reduce((acc, cur) => {
      // 如果两行的address字段相同,则把它们加起来
      const {name, address, age} = cur;
      const key = JSON.stringify([name, address]);
      if (acc[key]) {
        acc[key].age += age;
      } else {
        acc[key] = {...cur};
      }
      return acc;
    }, {})).forEach((row) => {
      ageTotal += row.age;
    })

    setTotalAge(ageTotal);
  }

  return (
    <>
      
年龄总和:{totalAge}
); }; export default ExampleTable;
  1. 遍历每一行来计算相似行的列值总和。
const calculateAgeTotal = () => {
  let

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