Export FlexGrid to a File (React)

This sample shows how to export a FlexGrid that implements row groups to a PDF file. FlexGridPdfConverter provides the export class method to export FlexGrid to a file.

Learn about FlexGrid | FlexGrid API Reference

This example uses React.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useRef, useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wijmo from '@mescius/wijmo'; import { PdfPageOrientation } from '@mescius/wijmo.pdf'; import { ExportMode, ScaleMode, FlexGridPdfConverter } from '@mescius/wijmo.grid.pdf'; import * as wjcGrid from '@mescius/wijmo.react.grid'; import * as wjInput from '@mescius/wijmo.react.input'; import './app.css'; import { data } from './data'; function App() { const [scaleMode, setScaleMode] = useState(ScaleMode.ActualSize); const [exportMode, setExportMode] = useState(ExportMode.All); const [orientation, setOrientation] = useState(PdfPageOrientation.Portrait); const flexGridRef = useRef(null); const initializeGrid = useEvent((source) => { flexGridRef.current = source; applyGroupBy(flexGridRef.current); }); const exportPDF = () => { if (!flexGridRef.current) return; FlexGridPdfConverter.export(flexGridRef.current, 'FlexGrid.pdf', { maxPages: 10, exportMode: exportMode, scaleMode: scaleMode, documentOptions: { pageSettings: { layout: orientation }, header: { declarative: { text: '\t&[Page]\\&[Pages]' } }, footer: { declarative: { text: '\t&[Page]\\&[Pages]' } } }, styles: { cellStyle: { backgroundColor: '#ffffff', borderColor: '#c6c6c6' }, altCellStyle: { backgroundColor: '#f9f9f9' }, groupCellStyle: { backgroundColor: '#dddddd' }, headerCellStyle: { backgroundColor: '#eaeaea' } } }); }; const applyGroupBy = (flexGrid) => { let groupNames = ['Product', 'Country', 'Amount']; // get the collection view, start update let cv = flexGrid.collectionView; cv.beginUpdate(); // clear existing groups cv.groupDescriptions.clear(); // add new groups for (let i = 0; i < groupNames.length; i++) { let propName = groupNames[i].toLowerCase(); // if (propName == 'amount') { // group amounts in ranges // (could use the mapping function to group countries into continents, // names into initials, etc) let groupDesc = new wijmo.PropertyGroupDescription(propName, (item, prop) => { let value = item[prop]; if (value > 1000) return 'Large Amounts'; if (value > 100) return 'Medium Amounts'; if (value > 0) return 'Small Amounts'; return 'Negative'; }); cv.groupDescriptions.push(groupDesc); } else { if (propName) { // group other properties by their specific values let groupDesc = new wijmo.PropertyGroupDescription(propName); cv.groupDescriptions.push(groupDesc); } } } // done updating cv.endUpdate(); }; return (<div className="container-fluid"> <div className="panel-group"> <div className="panel panel-default"> <div className="panel-heading"> <h4 className="panel-title"> Export Settings </h4> </div> <div className="panel-body"> <ul className="list-inline"> <li> <wjInput.Menu header='Scale mode' itemClicked={(s) => setScaleMode(s.selectedValue)} value={scaleMode}> <wjInput.MenuItem value={ScaleMode.ActualSize}> ActualSize </wjInput.MenuItem> <wjInput.MenuItem value={ScaleMode.PageWidth}> PageWidth </wjInput.MenuItem> <wjInput.MenuItem value={ScaleMode.SinglePage}> SinglePage </wjInput.MenuItem> </wjInput.Menu> </li> <li> <wjInput.Menu header='Orientation' itemClicked={(s) => setOrientation(s.selectedValue)} value={orientation}> <wjInput.MenuItem value={PdfPageOrientation.Portrait}> Portrait </wjInput.MenuItem> <wjInput.MenuItem value={PdfPageOrientation.Landscape}> Landscape </wjInput.MenuItem> </wjInput.Menu> </li> <li> <wjInput.Menu header='Export mode' itemClicked={(s) => setExportMode(s.selectedValue)} value={exportMode}> <wjInput.MenuItem value={ExportMode.All}> All </wjInput.MenuItem> <wjInput.MenuItem value={ExportMode.Selection}> Selection </wjInput.MenuItem> </wjInput.Menu> </li> </ul> </div> </div> </div> {/* Export button */} <button className="btn btn-default" onClick={exportPDF}> Export</button> {/* FlexGrid */} <wjcGrid.FlexGrid className="grid" autoGenerateColumns={false} selectionMode="ListBox" headersVisibility="All" itemsSource={data} initialized={initializeGrid}> <wjcGrid.FlexGridColumn header="ID" binding="id"/> <wjcGrid.FlexGridColumn header="Start Date" binding="start" format="d" minWidth={80}/> <wjcGrid.FlexGridColumn header="End Date" binding="end" format="d" minWidth={80}/> <wjcGrid.FlexGridColumn header="Country" binding="country"/> <wjcGrid.FlexGridColumn header="Product" binding="product"/> <wjcGrid.FlexGridColumn header="Amount" binding="amount" format="c" aggregate="Sum"/> <wjcGrid.FlexGridColumn header="Color" binding="color"/> <wjcGrid.FlexGridColumn header="Pending" binding="amount2" format="c2"/> <wjcGrid.FlexGridColumn header="Discount" binding="discount" format="p1"/> <wjcGrid.FlexGridColumn header="Active" binding="active"/> </wjcGrid.FlexGrid> </div>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Export to file</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.40/system.src.js" integrity="sha512-G6mEj6h18+m3MvzdviSDfPle/TfH0//cXcB33AKlNR/Rha0yQsKefDZKRTkIZos97HEGq2JMV1RT5ybMoQ3WsQ==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.grid { margin-top: 20px; height: 300px; }
function getData(count) { // const countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece']; const products = ['Widget', 'Gadget', 'Doohickey']; const colors = ['Orange', 'White', 'Red', 'Green', 'Blue']; // let data = []; let dt = new Date(); // // add count items for (let i = 0; i < count; i++) { // constants used to create data items let date = new Date(dt.getFullYear(), i % 12, 25, i % 24, i % 60, i % 60), countryId = Math.floor(Math.random() * countries.length), productId = Math.floor(Math.random() * products.length), colorId = Math.floor(Math.random() * colors.length); // // create the item let item = { id: i, start: date, end: date, country: countries[countryId], product: products[productId], color: colors[colorId], amount: Math.random() * 10000 - 5000, amount2: Math.random() * 10000 - 5000, discount: Math.random() / 4, active: i % 4 == 0 }; // // add the item to the list data.push(item); } return data; } export const data = getData(25);
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"npm:react-use-event-hook/dist/esm/useEvent.js", }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);