SpreadJS with React

SpreadJS supports React - a JavaScript library that allows developers to build user interfaces for web applications and mobile applications by handling the view layer of the MVC framework.

With React, you can modify data without reloading the page while creating reusable components and large applications.

Note: SpreadJS supports React versions 16, 17, and 18.

Using Node Package Manager
Using Traditional HTML

Using Node Package Manager

This method involves the following steps:

Create a React Project
Open the Command Prompt window and type the following commands:
```
npm install -g create-react-app
create-react-app quick-start
cd quick-start
npm start    
```
After you finish, the react project will be created at the specified location in the directory. For more information on how to create a React project, refer to Create New React App
Install SpreadJS React modules in the project
Install SpreadJS React modules in your project using the following command:
```
npm install @mescius/spread-sheets
npm install @mescius/spread-sheets-react
```
Import SpreadJS CSS
Import the SpreadJS CSS in your index.js file using the following code:
```
import '@mescius/spread-sheets/styles/gc.spread.sheets.excel2013white.css';
```

Use SpreadJS in React application and license SpreadJS

Modify the App.js file as per your requirements. Changes will be reflected when the browser window is refreshed. You can enter a valid SpreadJS license key before initializing the component. As an example, you can use the sample code given below:

import React, { Component } from 'react';
import { SpreadSheets, Worksheet, Column } from '@mescius/spread-sheets-react';
import * as GC from "@mescius/spread-sheets";

// Licensing SpreadJS
var SpreadJSKey = "xxx";          // Enter a valid license key.
GC.Spread.Sheets.LicenseKey = SpreadJSKey;

class APP extends Component {
 constructor(props) {
  super(props);
  this.spreadBackColor = 'aliceblue';
  this.sheetName = 'Goods List';
  this.hostStyle =
  {
   width: '800px',
   height: '600px'
  };
  this.data = [
    {
      Name: "Apple",
      Category: "Fruit",
      Price: 1,
      "Shopping Place": "Wal-Mart",
    },
    {
      Name: "Potato",
      Category: "Fruit",
      Price: 2.01,
      "Shopping Place": "Other",
    },
    {
      Name: "Tomato",
      Category: "Vegetable",
      Price: 3.21,
      "Shopping Place": "Other",
    },
    {
      Name: "Sandwich",
      Category: "Food",
      Price: 2,
      "Shopping Place": "Wal-Mart",
    },
    {
      Name: "Hamburger",
      Category: "Food",
      Price: 2,
      "Shopping Place": "Wal-Mart",
    },
    {
      Name: "Grape",
      Category: "Fruit",
      Price: 4,
      "Shopping Place": "Sun Store",
    },
  ];
  this.columnWidth = 100;
 }
 render() {
  return (
   <div>
   <SpreadSheets backColor={this.spreadBackColor} hostStyle={this.hostStyle}>
   <Worksheet name={this.sheetName} dataSource={this.data}>
   <Column dataField='Name' width={300}></Column>
   <Column dataField='Category' width={this.columnWidth}></Column>
   <Column dataField='Price' width={this.columnWidth}
   formatter="$#.00"></Column>
   <Column dataField='Shopping Place' width={this.columnWidth}></Column>
   </Worksheet>
   </SpreadSheets>
   </div>
  )
 }
}
export default APP

Using Traditional HTML

This method involves the following steps:

Download the React HTML template.
You can download the react HTML template using the link https://reactjs.org/docs/getting-started.html
Add SpreadJS and React - SpreadJS to HTML template.
Add references to the gc.spread.sheets.all.*.*.*.min.js, gc.SpreadJS.*.*.*.css and gc.spread.sheets.react.*.*.*.js files in the HTML template (i.e. your index.html file).

Use SpreadJS in React application and license SpreadJS.

Now, you can use SpreadJS in your React application. You can enter a valid SpreadJS license key before initializing the component. As an example, you can use the sample code given below:

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8" />
        <title>Hello World</title>
        <script src="https://unpkg.com/react@16/umd/react.development.js"></script>
        <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
        <script src="https://unpkg.com/babel-standalone@6.15.0/babel.min.js"></script>
        <script src="./lib/gc.spread.sheets.all.*.*.*.min.js"></script>
        <link rel="stylesheet" type="text/css" href="./lib/gc.spread.sheets.excel2013white.*.*.*.min.css">
        <script src="./lib/gc.spread.sheets.react.*.*.*.js"></script>
    </head>
    <body>
        <div id="root"></div>
        <script type="text/babel">
        window.onload = function () {

        // Licensing SpreadJS
        GC.Spread.Sheets.LicenseKey = "xxx";       // Enter a valid license key.

            const {SpreadSheets, Worksheet, Column} = window.SpreadSheetsComponents;
            class App extends React.Component{
                 render(){
                   return (
                        <div style={{width: '800px',height: '600px'}}>
                            <SpreadSheets>
                                <Worksheet name='first'>
                                    <Column dataField="Name"/>
                                </Worksheet>
                            </SpreadSheets>
                        </div>
                    )
                }
            }
            ReactDOM.render(
                <App/>,
                document.getElementById('root')
            );
         }
        </script>
    </body>
</html>

The SpreadSheets, Worksheet, and Column are the basic elements of tag hierarchy. Other elements work by setting them. The main tag hierarchy is:

<SpreadSheets>
  <Worksheet>
    <Column></Column>
    ...
  </Worksheet>
  ...
</SpreadSheets>

The following topics list the element directives.

Note: To use the ExcelIO element in SpreadJS with React, you need to import the Excel IO module and license it separately using the same license key, for more information refer to Excel IO Element.