DevExtreme Accessibility Compliance
DevExtreme component libraries meet a variety of WCAG and Section 508 compliance standards. To assess this demo’s accessibility level, click the Run AXE® Validation button to launch the AXE® web accessibility evaluation tool.
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The overall accessibility level of your application depends on the RadioGroup features used.
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Backend API
import React, { useCallback, useState } from 'react';
import RadioGroup, { RadioGroupTypes } from 'devextreme-react/radio-group';
import { priorities, priorityEntities, tasks } from './data.ts';
const renderCustomItem = (data) => <div>{data}</div>;
function App() {
const [colorPriority, setColorPriority] = useState(priorities[2]);
const [selectionPriority, setSelectionPriority] = useState(priorityEntities[0].id);
const changeColorPriority = useCallback((e: RadioGroupTypes.ValueChangedEvent) => {
setColorPriority(e.value);
}, [setColorPriority]);
const changeSelectionPriority = useCallback((e: RadioGroupTypes.ValueChangedEvent) => {
setSelectionPriority(e.value);
}, [setSelectionPriority]);
return (
<div className="form">
<div className="dx-fieldset">
<div className="dx-field">
<div className="dx-field-label">Default mode</div>
<div className="dx-field-value">
<RadioGroup items={priorities} defaultValue={priorities[0]} />
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Disabled</div>
<div className="dx-field-value">
<RadioGroup items={priorities} defaultValue={priorities[1]} disabled={true} />
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Horizontal layout</div>
<div className="dx-field-value">
<RadioGroup items={priorities} defaultValue={priorities[0]} layout="horizontal" />
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Custom item template</div>
<div className="dx-field-value">
<RadioGroup
className={colorPriority.toLowerCase()}
items={priorities}
value={colorPriority}
itemRender={renderCustomItem}
onValueChanged={changeColorPriority}
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Event handling</div>
<div className="dx-field-value">
<RadioGroup
id="radio-group-with-selection"
items={priorityEntities}
value={selectionPriority}
valueExpr="id"
displayExpr="text"
onValueChanged={changeSelectionPriority}
/>
</div>
</div>
</div>
<div id="tasks-list">
Tasks by selected priority:
<ul id="list">
{tasks
.filter((task) => task.priority === selectionPriority)
.map((task) => (
<li key={task.id}>{task.subject}</li>
))}
</ul>
</div>
</div>
);
}
export default App;
import React, { useCallback, useState } from 'react';
import RadioGroup from 'devextreme-react/radio-group';
import { priorities, priorityEntities, tasks } from './data.js';
const renderCustomItem = (data) => <div>{data}</div>;
function App() {
const [colorPriority, setColorPriority] = useState(priorities[2]);
const [selectionPriority, setSelectionPriority] = useState(priorityEntities[0].id);
const changeColorPriority = useCallback(
(e) => {
setColorPriority(e.value);
},
[setColorPriority],
);
const changeSelectionPriority = useCallback(
(e) => {
setSelectionPriority(e.value);
},
[setSelectionPriority],
);
return (
<div className="form">
<div className="dx-fieldset">
<div className="dx-field">
<div className="dx-field-label">Default mode</div>
<div className="dx-field-value">
<RadioGroup
items={priorities}
defaultValue={priorities[0]}
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Disabled</div>
<div className="dx-field-value">
<RadioGroup
items={priorities}
defaultValue={priorities[1]}
disabled={true}
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Horizontal layout</div>
<div className="dx-field-value">
<RadioGroup
items={priorities}
defaultValue={priorities[0]}
layout="horizontal"
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Custom item template</div>
<div className="dx-field-value">
<RadioGroup
className={colorPriority.toLowerCase()}
items={priorities}
value={colorPriority}
itemRender={renderCustomItem}
onValueChanged={changeColorPriority}
/>
</div>
</div>
<div className="dx-field">
<div className="dx-field-label">Event handling</div>
<div className="dx-field-value">
<RadioGroup
id="radio-group-with-selection"
items={priorityEntities}
value={selectionPriority}
valueExpr="id"
displayExpr="text"
onValueChanged={changeSelectionPriority}
/>
</div>
</div>
</div>
<div id="tasks-list">
Tasks by selected priority:
<ul id="list">
{tasks
.filter((task) => task.priority === selectionPriority)
.map((task) => (
<li key={task.id}>{task.subject}</li>
))}
</ul>
</div>
</div>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import themes from 'devextreme/ui/themes';
import App from './App.tsx';
themes.initialized(() => {
ReactDOM.render(
<App />,
document.getElementById('app'),
);
});
export const priorities = ['Low', 'Normal', 'Urgent', 'High'];
export const priorityEntities = [
{ id: 0, text: 'Low' },
{ id: 1, text: 'Normal' },
{ id: 2, text: 'Urgent' },
{ id: 3, text: 'High' },
];
export const tasks = [{
id: 0,
subject: 'Choose between PPO and HMO Health Plan',
priority: 3,
}, {
id: 1,
subject: 'Non-Compete Agreements',
priority: 0,
}, {
id: 2,
subject: 'Comment on Revenue Projections',
priority: 1,
}, {
id: 3,
subject: 'Sign Updated NDA',
priority: 2,
}, {
id: 4,
subject: 'Submit Questions Regarding New NDA',
priority: 3,
}, {
id: 5,
subject: 'Rollout of New Website and Marketing Brochures',
priority: 3,
}];
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.8.1/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.13/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
import React from 'react';
import ReactDOM from 'react-dom';
import themes from 'devextreme/ui/themes';
import App from './App.js';
themes.initialized(() => {
ReactDOM.render(<App />, document.getElementById('app'));
});
export const priorities = ['Low', 'Normal', 'Urgent', 'High'];
export const priorityEntities = [
{ id: 0, text: 'Low' },
{ id: 1, text: 'Normal' },
{ id: 2, text: 'Urgent' },
{ id: 3, text: 'High' },
];
export const tasks = [
{
id: 0,
subject: 'Choose between PPO and HMO Health Plan',
priority: 3,
},
{
id: 1,
subject: 'Non-Compete Agreements',
priority: 0,
},
{
id: 2,
subject: 'Comment on Revenue Projections',
priority: 1,
},
{
id: 3,
subject: 'Sign Updated NDA',
priority: 2,
},
{
id: 4,
subject: 'Submit Questions Regarding New NDA',
priority: 3,
},
{
id: 5,
subject: 'Rollout of New Website and Marketing Brochures',
priority: 3,
},
];
<!DOCTYPE html>
<html lang="en">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.7/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import("./index.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.low .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: gray;
}
.normal .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: green;
}
.urgent .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: orange;
}
.high .dx-radiobutton-checked .dx-radiobutton-icon .dx-radiobutton-icon-dot {
background: red;
}
#radio-group-with-selection {
margin-bottom: 10px;
}
#tasks-list {
margin: 0 0 10px 10px;
white-space: normal;
}
#list {
margin: 10px 0 0 20px;
padding-left: 0;
text-align: left;
}
Bind RadioGroup to Data
You can display RadioGroup items from the items array or a dataSource. If your data is an array of objects, use the displayExpr and valueExpr properties. displayExpr specifies a data source field that contains button captions. valueExpr specifies a data source field that supplies values to the value property when users select a button. Leave valueExpr unspecified if you need to supply the entire data object to the value property.
Configure the Layout
The RadioGroup supports horizontal (default for tablets) and vertical (default for other devices) layouts. To change the layout for all device types, specify the layout property.
Customize the Item Appearance
Define the itemTemplate to customize the item appearance. To customize an individual item, specify its template property.
Handle the Value Change Event
You can set the value property to one of the data source items to specify a predefined selection. Implement the onValueChanged function to handle value changes.