How to achieve table header fixation in react-Front-end Q&A-php.cn

Home

Web Front-end

Front-end Q&A

How to achieve table header fixation in react

藏色散人

Jan 09, 2023 am 10:25 AM

react

React method to implement table header fixation: 1. Implement table header fixation through the Table component of Ant Design; 2. Use "rc-table" to implement table header fixation on the mobile side; 3. By monitoring div onscroll event, change the scrollLeft attribute of the div.

How to achieve table header fixation in react

The operating environment of this tutorial: Windows 10 system, react18.0.0 version, Dell G3 computer.

How to fix the header in react?

React table fixed header/locked column

Ant Design’s Table component is very easy to use. It has the functions of fixed header and locked column, but Ant Design Mobile does not have Table components. To implement the functions of fixed table headers and locked columns on the mobile terminal, you should be able to use rc-table, or of course you can write one yourself.

By analyzing AntD's Table, we can see that the table with a fixed header is composed of two

tags, which are nested in divs respectively. The top one is the table header, which only contains < ;thead>, below is the table content, only containing . You should listen to the onscroll event of the div below and change the scrollLeft attribute of the div above, so that when the table is scrolled horizontally, the table header will also scroll synchronously. Fixed columns are achieved by setting the CSS properties position of th and td to sticky and setting left or right to 0. At the same time, set z-index so that the locked columns are always displayed at the top.

After you understand the principle, it will be easier to write code.

components/ScrollableTable/interface.tsx

import * as React from &#39;react&#39;;
export declare type AlignType = &#39;left&#39; | &#39;center&#39; | &#39;right&#39;;
export interface ColumnType {
  align?: AlignType;
  className?: string;
  dataKey?: string;
  fixed?: boolean;
  title?: React.ReactNode;
  width?: number;
  render?: (value: any, record: any, index: number) => React.ReactNode;
}
export interface TableProps {
  className?: string;
  style?: React.CSSProperties;
  columns?: ColumnType[];
  dataSource?: any[];
  width?: number;
  height?: number;
}

components/ScrollableTable/index.tsx

import React, { FunctionComponent, useRef } from &#39;react&#39;;
import { TableProps, ColumnType } from &#39;./interface&#39;;
import &#39;./index.less&#39;;
const ScrollableTable: FunctionComponent<any> = (props: TableProps) => {
  const style: React.CSSProperties = props.style || {};
  const maxHeight: string = props.width ? (props.height + &#39;px&#39;) : &#39;unset&#39;;
  const columns: ColumnType[] = props.columns || [];
  const dataSource: any[] = props.dataSource || [];
  let maxWidth: number = 0;
  if (props.width) style.width = props.width;
  if (columns.length === 0) {
    columns.push({
      dataKey: &#39;key&#39;
    });
  }
  columns.forEach((column: ColumnType) => {
    const width: number = column.width || 50;
    maxWidth += width;
  });
  const fixedColumns: number[][] = getFixedColumns(columns);
  const leftFixedColumns: number[] = fixedColumns[0];
  const rightFixedColumns: number[] = fixedColumns[1];
  const tableBody: any = useRef();
  const handleScroll = (target: any) => {
    const scrollLeft: number = target.scrollLeft;
    const tableHeaders: any = target.parentElement.getElementsByClassName(&#39;st-table-header&#39;);
    if (tableHeaders.length > 0) {
      tableHeaders[0].scrollLeft = scrollLeft;
    }
  };
  return (
    <div
      className={classNames(&#39;st-table-container&#39;, props.className)}
      style={style}
    >
      <div className="st-table-header">
        <table>
          <colgroup>
            {
              renderCols(columns)
            }
          </colgroup>
          <thead className="st-table-thead">
            <tr>
              {
                columns.map((column: ColumnType, index: number) => {
                  const align: any = column.align || undefined;
                  const title: React.ReactNode = column.title || &#39;&#39;;
                  const fixed: string = leftFixedColumns.includes(index) ? &#39;left&#39; : (rightFixedColumns.includes(index) ? &#39;right&#39; : &#39;&#39;);
                  const fixedClassName: string = fixed ? (&#39;st-table-cell-fix-&#39; + fixed) : &#39;&#39;;
                  return (
                    <th
                      key={index}
                      className={classNames(&#39;st-table-cell&#39;, fixedClassName, column.className)}
                      style={{textAlign: align}}
                    >
                      {title}
                    </th>
                  );
                })
              }
            </tr>
          </thead>
        </table>
      </div>
      <div
        ref={tableBody}
        className="st-table-body"
        style={{maxHeight: maxHeight}}
        onScroll={(e: any) => handleScroll(e.currentTarget)}
      >
        <table style={{width: maxWidth, minWidth: &#39;100%&#39;}}>
          <colgroup>
              {
                renderCols(columns)
              }
            </colgroup>
            <tbody className="st-table-tbody">
              {
                dataSource.map((record: any, index: number) => (
                  <tr key={index} className="st-table-row">
                    {
                      renderCells(columns, leftFixedColumns, rightFixedColumns, record, index)
                    }
                  </tr>
                ))
              }
            </tbody>
        </table>
      </div>
    </div>
  );
};
function classNames(...names: (string | undefined)[]) {
  const currentNames: string[] = [];
  names.forEach((name: (string | undefined)) => {
    if (name) currentNames.push(name);
  });
  return currentNames.join(&#39; &#39;);
}
function getFixedColumns(columns: ColumnType[]) {
  const total: number = columns.length;
  const leftFixedColumns: number[] = [];
  const rightFixedColumns: number[] = [];
  if (columns[0].fixed) {
    for (let i = 0; i < total; i++) {
      if (columns[i].fixed) {
        leftFixedColumns.push(i);
      } else {
        break;
      }
    }
  }
  if (columns[total - 1].fixed) {
    for (let i = total - 1; i >= 0; i--) {
      if (columns[i].fixed) {
        if (!leftFixedColumns.includes(i)) rightFixedColumns.push(i);
      } else {
        break;
      }
    }
  }
  return [leftFixedColumns, rightFixedColumns];
}
function renderCols(columns: ColumnType[]) {
  return columns.map((column: ColumnType, index: number) => {
    const width: number = column.width || 50;
    return (
      <col
        key={index}
        style={{width: width, minWidth: width}}
      />
    );
  });
}
function renderCells(columns: ColumnType[], leftFixedColumns: number[], rightFixedColumns: number[], record: any, index: number) {
  return columns.map((column: ColumnType, index: number) => {
    const align: any = column.align || undefined;
    const fixed: string = leftFixedColumns.includes(index) ? &#39;left&#39; : (rightFixedColumns.includes(index) ? &#39;right&#39; : &#39;&#39;);
    const className: string = classNames(&#39;st-table-cell&#39;, column.className, fixed ? (&#39;st-table-cell-fix-&#39; + fixed) : &#39;&#39;);
    const rawValue: any = (column.dataKey && column.dataKey in record) ? record[column.dataKey] : undefined;
    let value: any = undefined;
    if (column.render) {
      value = column.render(rawValue, record, index);
    } else {
      value = (rawValue === undefined || rawValue === null) ? &#39;&#39; : String(rawValue);
    }
    return (
      <td
        key={index}
        className={className}
        style={{textAlign: align}}
      >
        {value}
      </td>
    );
  });
}
export default ScrollableTable;

components/ScrollableTable/index.less

.st-table-container {
  border: 1px solid #f0f0f0;
  border-right: 0;
  border-bottom: 0;
  font-size: 14px;
  .st-table-header {
    border-right: 1px solid #f0f0f0;
    overflow: hidden;
    table {
      border-collapse: separate;
      border-spacing: 0;
      table-layout: fixed;
      width: 100%;
      thead.st-table-thead {
        tr {
          th.st-table-cell {
            background: #fafafa;
            border-bottom: 1px solid #f0f0f0;
            border-right: 1px solid #f0f0f0;
            color: rgba(0, 0, 0, .85);
            font-weight: 500;
            padding: 8px;
            text-align: left;
            &:last-child {
              border-right: 0;
            }
          }
        }
      }
    }
  }
  .st-table-body {
    overflow: auto scroll;
    border-bottom: 1px solid #f0f0f0;
    border-right: 1px solid #f0f0f0;
    table {
      border-collapse: separate;
      border-spacing: 0;
      table-layout: fixed;
      tbody.st-table-tbody {
        tr.st-table-row {
          td.st-table-cell  {
            border-bottom: 1px solid #f0f0f0;
            border-right: 1px solid #f0f0f0;
            color: rgba(0, 0, 0, .65);
            padding: 8px;
            text-align: left;
            &:last-child {
              border-right: 0;
            }
          }
          &:last-child {
            td.st-table-cell  {
              border-bottom: 0;
            }
          }
        }
      }
    }
  }
  table {
    .st-table-cell {
      &.st-table-cell-fix-left {
        background: #fff;
        position: sticky;
        left: 0;
        z-index: 2;
      }
      &.st-table-cell-fix-right {
        background: #fff;
        position: sticky;
        right: 0;
        z-index: 2;
      }
    }
  }
}

Copy after login

Then you can use it like this:

views/Test/index.tsx
import React, { FunctionComponent } from &#39;react&#39;;
import Page from &#39;../../components/Page&#39;;
import ScrollableTable from &#39;../../components/ScrollableTable&#39;;
import StoreProvider from &#39;../../stores/products/context&#39;;
import &#39;./index.less&#39;;
const Test: FunctionComponent<any> = (props: any) => {
  let records: any[] = [{
    id: 1,
    productName: &#39;淡泰&#39;,
    amount1: 198,
    amount2: 200,
    amount3: 205.5,
    currency: &#39;人民币&#39;,
    ca: &#39;Amy&#39;
  }, {
    productName: &#39;方润&#39;,
    amount1: 105.5,
    amount2: 100,
    amount3: 108,
    currency: &#39;港元&#39;,
    ca: &#39;Baby&#39;
  }, {
    productName: &#39;医疗基金-1&#39;,
    amount1: 153,
    amount2: 150,
    amount3: 155,
    currency: &#39;人民币&#39;,
    ca: &#39;Emily&#39;
  }, {
    productName: &#39;医疗基金-2&#39;,
    amount1: 302,
    amount2: 300,
    amount3: 290,
    currency: &#39;美元&#39;,
    ca: &#39;Baby&#39;
  }, {
    productName: &#39;医疗基金-3&#39;,
    amount1: 108.8,
    amount2: 100,
    amount3: 130,
    currency: &#39;人民币&#39;,
    ca: &#39;Amy&#39;
  }, {
    productName: &#39;医疗基金-4&#39;,
    amount1: 205,
    amount2: 200,
    amount3: 208,
    currency: &#39;美元&#39;,
    ca: &#39;吴丹&#39;
  }, {
    productName: &#39;医疗基金-5&#39;,
    amount1: 315.5,
    amount2: 300,
    amount3: 280,
    currency: &#39;人民币&#39;,
    ca: &#39;Baby&#39;
  }, {
    productName: &#39;医疗基金-6&#39;,
    amount1: 109,
    amount2: 95,
    amount3: 106,
    currency: &#39;人民币&#39;,
    ca: &#39;Emily&#39;
  }, {
    productName: &#39;恒大私募债&#39;,
    amount1: 213,
    amount2: 200,
    amount3: 208,
    currency: &#39;港元&#39;,
    ca: &#39;吴丹&#39;
  }];
  const totalRecord: any = {
    productName: &#39;合计&#39;,
    amount1: {},
    amount2: {},
    amount3: {}
  };
  records.forEach((record: any) => {
    const currency: string = record.currency;
    [&#39;amount1&#39;, &#39;amount2&#39;, &#39;amount3&#39;].forEach((key: string) => {
      const value: any = totalRecord[key];
      if (!(currency in value)) value[currency] = 0;
      value[currency] += record[key];
    });
  });
  records.push(totalRecord);
  const columns: any[] = [{
    dataKey: &#39;productName&#39;,
    title: &#39;产品名称&#39;,
    width: 90,
    fixed: true
  }, {
    dataKey: &#39;amount1&#39;,
    title: <React.Fragment>上周缴款金额<br/>（万）</React.Fragment>,
    width: 140,
    align: &#39;center&#39;,
    className: &#39;amount&#39;,
    render: calculateTotal
  }, {
    dataKey: &#39;amount2&#39;,
    title: <React.Fragment>上周预约金额<br/>（万）</React.Fragment>,
    width: 140,
    align: &#39;center&#39;,
    className: &#39;amount&#39;,
    render: calculateTotal
  }, {
    dataKey: &#39;amount3&#39;,
    title: <React.Fragment>待本周跟进金额<br/>（万）</React.Fragment>,
    width: 140,
    align: &#39;center&#39;,
    className: &#39;amount&#39;,
    render: calculateTotal
  }, {
    dataKey: &#39;currency&#39;,
    title: &#39;币种&#39;,
    width: 80
  }, {
    dataKey: &#39;ca&#39;,
    title: &#39;CA&#39;,
    width: 80
  }];
  return (
    <StoreProvider>
      <Page
        {...props}
        title="销售统计"
        className="test"
      >
        <div style={{padding: 15}}>
          <ScrollableTable
            width={window.innerWidth - 30}
            height={196}
            columns={columns}
            dataSource={records}
          />
        </div>
      </Page>
    </StoreProvider>
  );
};
function calculateTotal(value: any) {
  if (value instanceof Object) {
    const keys: any[] = Object.keys(value);
    return (
      <React.Fragment>
        {
          keys.map((key: string, index: number) => (
            <span key={index}>
              {`${value[key].toFixed(2)}万${key}`}
            </span>
          ))
        }
      </React.Fragment>
    )
  }
  return value.toFixed(2);
}
export default Test;

views/Test/index.less

.st-table-container {
  .st-table-body {
    td.st-table-cell.amount {
      padding-right: 20px !important;
      text-align: right !important;
      span {
        display: block;
      }
    }
  }
}

Copy after login

Recommended learning: "react video tutorial"

The above is the detailed content of How to achieve table header fixation in react. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Repo: How To Revive Teammates

4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hello Kitty Island Adventure: How To Get Giant Seeds

4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

How Long Does It Take To Beat Split Fiction?

3 weeks ago By DDD

R.E.P.O. Save File Location: Where Is It & How to Protect It?

3 weeks ago By DDD

Hot Tools

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Hot Topics

Where is the login entrance for gmail email?

7323

Java Tutorial

1625

CakePHP Tutorial

1350

Laravel Tutorial

1262

PHP Tutorial

1209

Related knowledge

How to build a real-time chat app with React and WebSocket Sep 26, 2023 pm 07:46 PM

How to build a real-time chat application using React and WebSocket Introduction: With the rapid development of the Internet, real-time communication has attracted more and more attention. Live chat apps have become an integral part of modern social and work life. This article will introduce how to build a simple real-time chat application using React and WebSocket, and provide specific code examples. 1. Technical preparation Before starting to build a real-time chat application, we need to prepare the following technologies and tools: React: one for building

Guide to React front-end and back-end separation: How to achieve decoupling and independent deployment of front-end and back-end Sep 28, 2023 am 10:48 AM

React front-end and back-end separation guide: How to achieve front-end and back-end decoupling and independent deployment, specific code examples are required In today's web development environment, front-end and back-end separation has become a trend. By separating front-end and back-end code, development work can be made more flexible, efficient, and facilitate team collaboration. This article will introduce how to use React to achieve front-end and back-end separation, thereby achieving the goals of decoupling and independent deployment. First, we need to understand what front-end and back-end separation is. In the traditional web development model, the front-end and back-end are coupled

How to build simple and easy-to-use web applications with React and Flask Sep 27, 2023 am 11:09 AM

How to use React and Flask to build simple and easy-to-use web applications Introduction: With the development of the Internet, the needs of web applications are becoming more and more diverse and complex. In order to meet user requirements for ease of use and performance, it is becoming increasingly important to use modern technology stacks to build network applications. React and Flask are two very popular frameworks for front-end and back-end development, and they work well together to build simple and easy-to-use web applications. This article will detail how to leverage React and Flask

How to build a reliable messaging app with React and RabbitMQ Sep 28, 2023 pm 08:24 PM

How to build a reliable messaging application with React and RabbitMQ Introduction: Modern applications need to support reliable messaging to achieve features such as real-time updates and data synchronization. React is a popular JavaScript library for building user interfaces, while RabbitMQ is a reliable messaging middleware. This article will introduce how to combine React and RabbitMQ to build a reliable messaging application, and provide specific code examples. RabbitMQ overview:

How to build a fast data analysis application using React and Google BigQuery Sep 26, 2023 pm 06:12 PM

How to use React and Google BigQuery to build fast data analysis applications Introduction: In today's era of information explosion, data analysis has become an indispensable link in various industries. Among them, building fast and efficient data analysis applications has become the goal pursued by many companies and individuals. This article will introduce how to use React and Google BigQuery to build a fast data analysis application, and provide detailed code examples. 1. Overview React is a tool for building

React Router User Guide: How to implement front-end routing control Sep 29, 2023 pm 05:45 PM

ReactRouter User Guide: How to Implement Front-End Routing Control With the popularity of single-page applications, front-end routing has become an important part that cannot be ignored. As the most popular routing library in the React ecosystem, ReactRouter provides rich functions and easy-to-use APIs, making the implementation of front-end routing very simple and flexible. This article will introduce how to use ReactRouter and provide some specific code examples. To install ReactRouter first, we need

React code debugging guide: How to quickly locate and solve front-end bugs Sep 26, 2023 pm 02:25 PM

React code debugging guide: How to quickly locate and resolve front-end bugs Introduction: When developing React applications, you often encounter a variety of bugs that may crash the application or cause incorrect behavior. Therefore, mastering debugging skills is an essential ability for every React developer. This article will introduce some practical techniques for locating and solving front-end bugs, and provide specific code examples to help readers quickly locate and solve bugs in React applications. 1. Selection of debugging tools: In Re

React responsive design guide: How to achieve adaptive front-end layout effects Sep 26, 2023 am 11:34 AM

React Responsive Design Guide: How to Achieve Adaptive Front-end Layout Effects With the popularity of mobile devices and the increasing user demand for multi-screen experiences, responsive design has become one of the important considerations in modern front-end development. React, as one of the most popular front-end frameworks at present, provides a wealth of tools and components to help developers achieve adaptive layout effects. This article will share some guidelines and tips on implementing responsive design using React, and provide specific code examples for reference. Fle using React

See all articles