Formatting Items in ListBox (React)

The ListBox control allows you to customize the display of the items in the list. This sample adds inline HTML with glyphs to display them in the ListBox.

Learn about Input Controls | ListBox Customization Documentation | ListBox API Reference

This example uses React.

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app.jsx
index.html
app.css
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import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wjInput from '@mescius/wijmo.react.input'; import './app.css'; const glyphs = ['asterisk', 'calendar', 'check', 'circle', 'clock', 'diamond', 'down', 'down-left', 'down-right', 'file', 'filter', 'left', 'minus', 'pencil', 'plus', 'right', 'square', 'step-backward', 'step-forward', 'up', 'up-left', 'up-right']; function App() { const [selectedItem, setSelectedItem] = useState('asterisk'); const [listBox, setListBox] = useState({}); const onInitialized = useEvent((listBox) => { setListBox(listBox); listBox.invalidate(); }); const onSelectedIndexChanged = useEvent((sender) => { setSelectedItem(sender.selectedValue); }); return (<main className="container-fluid"> <div className="row"> <p> This ListBox uses a <b>wjItemTemplate</b> <i>render prop</i> to customize the display of the items in the list. </p> </div> <div className="row"> <div className="col-xs-4"> <wjInput.ListBox displayMemberPath="country" itemsSource={glyphs} selectedIndexChanged={onSelectedIndexChanged} initialized={onInitialized} wjItemTemplate={(context) => (<div> <div className="wj-glyph"> <span className={`wj-glyph-${context.item}`}></span> </div> {context.item} </div>)}> </wjInput.ListBox> </div> <div className="col-xs-8"> <h1> <span className={'wj-glyph-' + selectedItem}></span> </h1> </div> </div> </main>); } const container = document.getElementById('app'); if (container) { const root = ReactDOM.createRoot(container); root.render(<App />); }
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import ReactDOM from 'react-dom/client'; import React, { useState } from 'react'; import useEvent from 'react-use-event-hook'; import * as wjInput from '@mescius/wijmo.react.input'; import './app.css'; const glyphs = ['asterisk', 'calendar', 'check', 'circle', 'clock', 'diamond', 'down', 'down-left', 'down-right', 'file', 'filter', 'left', 'minus', 'pencil', 'plus', 'right', 'square', 'step-backward', 'step-forward', 'up', 'up-left', 'up-right']; function App() { const [selectedItem, setSelectedItem] = useState('asterisk'); const [listBox, setListBox] = useState({}); const onInitialized = useEvent((listBox) => { setListBox(listBox); listBox.invalidate(); }); const onSelectedIndexChanged = useEvent((sender) => { setSelectedItem(sender.selectedValue); }); return (<main className="container-fluid"> <div className="row"> <p> This ListBox uses a <b>wjItemTemplate</b> <i>render prop</i> to customize the display of the items in the list. </p> </div> <div className="row"> <div className="col-xs-4"> <wjInput.ListBox displayMemberPath="country" itemsSource={glyphs} selectedIndexChanged={onSelectedIndexChanged} initialized={onInitialized} wjItemTemplate={(context) => (<div> <div className="wj-glyph"> <span className={`wj-glyph-${context.item}`}></span> </div> {context.item} </div>)}> </wjInput.ListBox> </div> <div className="col-xs-8"> <h1> <span className={'wj-glyph-' + selectedItem}></span> </h1> </div> </div> </main>); } 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>MESCIUS Wijmo ListBox formatItem</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>
.wj-listbox { max-height: 150px; } .wj-listbox .wj-glyph { display: inline-block; width: 2em; text-align: center; } .wj-listbox .wj-listbox-item:not(.wj-state-selected) .wj-glyph { color: navy; }
(function (global) { window.process = { env: { NODE_ENV: "production" } } System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', 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'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js', "react-use-event-hook": "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);