Question

给出以下示例：https://codesandbox.io/s/l49mrmvj67 是否可以添加自定义页脚，以对当前页面的Salary列求和并将其显示在页脚中？

感谢您的帮助。

Answer 1

为简单起见，我将所有内容都放在同一组件中

import React from "react";
import ReactDOM from "react-dom";
import MUIDataTable from "mui-datatables";
import { TableFooter, TableCell, TableRow } from "@material-ui/core";

class App extends React.Component {
  render() {
    const columns = ["Name", "Title", "Location", "Age", "Salary"];

    let data = [
      ["Gabby George", "Business Analyst", "Minneapolis", 30, 100000],
      ["Aiden Lloyd", "Business Consultant", "Dallas", 55, 200000],
      ["Jaden Collins", "Attorney", "Santa Ana", 27, 500000],
      ["Franky Rees", "Business Analyst", "St. Petersburg", 22, 50000],
      ["Aaren Rose", "Business Consultant", "Toledo", 28, 75000],
      ["Blake Duncan", "Business Management Analyst", "San Diego", 65, 94000],
      ["Frankie Parry", "Agency Legal Counsel", "Jacksonville", 71, 210000],
      ["Lane Wilson", "Commercial Specialist", "Omaha", 19, 65000],
      ["Robin Duncan", "Business Analyst", "Los Angeles", 20, 77000],
      ["Mel Brooks", "Business Consultant", "Oklahoma City", 37, 135000],
      ["Harper White", "Attorney", "Pittsburgh", 52, 420000],
      ["Kris Humphrey", "Agency Legal Counsel", "Laredo", 30, 150000],
      ["Frankie Long", "Industrial Analyst", "Austin", 31, 170000],
      ["Brynn Robbins", "Business Analyst", "Norfolk", 22, 90000],
      ["Justice Mann", "Business Consultant", "Chicago", 24, 133000],
      [
        "Addison Navarro",
        "Business Management Analyst",
        "New York",
        50,
        295000
      ],
      ["Jesse Welch", "Agency Legal Counsel", "Seattle", 28, 200000],
      ["Eli Mejia", "Commercial Specialist", "Long Beach", 65, 400000],
      ["Gene Leblanc", "Industrial Analyst", "Hartford", 34, 110000],
      ["Danny Leon", "Computer Scientist", "Newark", 60, 220000],
      ["Lane Lee", "Corporate Counselor", "Cincinnati", 52, 180000],
      ["Jesse Hall", "Business Analyst", "Baltimore", 44, 99000],
      ["Danni Hudson", "Agency Legal Counsel", "Tampa", 37, 90000],
      ["Terry Macdonald", "Commercial Specialist", "Miami", 39, 140000],
      ["Justice Mccarthy", "Attorney", "Tucson", 26, 330000],
      ["Silver Carey", "Computer Scientist", "Memphis", 47, 250000],
      ["Franky Miles", "Industrial Analyst", "Buffalo", 49, 190000],
      ["Glen Nixon", "Corporate Counselor", "Arlington", 44, 80000],
      [
        "Gabby Strickland",
        "Business Process Consultant",
        "Scottsdale",
        26,
        45000
      ],
      ["Mason Ray", "Computer Scientist", "San Francisco", 39, 142000]
    ];

    const options = {
      filter: true,
      selectableRows: true,
      filterType: "dropdown",
      rowsPerPage: 3,
      customFooter: (
        count,
        page,
        rowsPerPage,
        changeRowsPerPage,
        changePage
      ) => {
        const startIndex = page * rowsPerPage;
        const endIndex = (page + 1) * rowsPerPage;
        return (
          <TableFooter>
            <TableRow>
              <TableCell colSpan={6}>
                Total Salery for current page: {sumSalery(startIndex, endIndex)}
              </TableCell>
            </TableRow>
          </TableFooter>
        );
      }
    };

    const sumSalery = (startIndex, endIndex) => {
      return data
        .slice(startIndex, endIndex)
        .map(a => a[4])
        .reduce((total, salery) => (total += salery), 0);
    };

    return (
      <MUIDataTable
        title={"ACME Employee list"}
        data={data}
        columns={columns}
        options={options}
      />
    );
  }
}

ReactDOM.render(<App />, document.getElementById("root"));

对于salery，您只需要找到当前显示的数据对象（当前页面）的开始和结束索引。使用这两个，您可以简单地添加子阵列的售货处。

如果您有任何问题，请告诉我。

Mui DataTable自定义摘要页脚

1 个答案: