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 Charts features used.
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Backend API
import React from 'react';
import Chart, {
ArgumentAxis,
CommonSeriesSettings,
Legend,
Series,
Tooltip,
ValueAxis,
ConstantLine,
Label,
} from 'devextreme-react/chart';
import { complaintsData } from './data.ts';
const data = complaintsData.sort((a, b) => b.count - a.count);
const totalCount = data.reduce((prevValue, item) => prevValue + item.count, 0);
let cumulativeCount = 0;
const dataArray = data.map((item) => {
cumulativeCount += item.count;
return {
complaint: item.complaint,
count: item.count,
cumulativePercentage: Math.round((cumulativeCount * 100) / totalCount),
};
});
const customizeTooltip = (pointInfo) => ({
html: `<div><div class="tooltip-header">${
pointInfo.argumentText
}</div><div class="tooltip-body"><div class="series-name"><span class='top-series-name'>${
pointInfo.points[0].seriesName
}</span>: </div><div class="value-text"><span class='top-series-value'>${
pointInfo.points[0].valueText
}</span></div><div class="series-name"><span class='bottom-series-name'>${
pointInfo.points[1].seriesName
}</span>: </div><div class="value-text"><span class='bottom-series-value'>${
pointInfo.points[1].valueText
}</span>% </div></div></div>`,
});
function customizePercentageText({ valueText }) {
return `${valueText}%`;
}
function App() {
return (
<Chart
title="Pizza Shop Complaints"
dataSource={dataArray}
palette="Harmony Light"
id="chart"
>
<CommonSeriesSettings argumentField="complaint" />
<Series
name="Complaint frequency"
valueField="count"
axis="frequency"
type="bar"
color="#fac29a"
/>
<Series
name="Cumulative percentage"
valueField="cumulativePercentage"
axis="percentage"
type="spline"
color="#6b71c3"
/>
<ArgumentAxis>
<Label overlappingBehavior="stagger" />
</ArgumentAxis>
<ValueAxis name="frequency" position="left" tickInterval={300} />
<ValueAxis
name="percentage"
position="right"
tickInterval={20}
showZero={true}
valueMarginsEnabled={false}
>
<Label customizeText={customizePercentageText} />
<ConstantLine value={80} width={2} color="#fc3535" dashStyle="dash">
<Label visible={false} />
</ConstantLine>
</ValueAxis>
<Tooltip enabled={true} shared={true} customizeTooltip={customizeTooltip} />
<Legend verticalAlignment="top" horizontalAlignment="center" />
</Chart>
);
}
export default App;
import React from 'react';
import Chart, {
ArgumentAxis,
CommonSeriesSettings,
Legend,
Series,
Tooltip,
ValueAxis,
ConstantLine,
Label,
} from 'devextreme-react/chart';
import { complaintsData } from './data.js';
const data = complaintsData.sort((a, b) => b.count - a.count);
const totalCount = data.reduce((prevValue, item) => prevValue + item.count, 0);
let cumulativeCount = 0;
const dataArray = data.map((item) => {
cumulativeCount += item.count;
return {
complaint: item.complaint,
count: item.count,
cumulativePercentage: Math.round((cumulativeCount * 100) / totalCount),
};
});
const customizeTooltip = (pointInfo) => ({
html: `<div><div class="tooltip-header">${pointInfo.argumentText}</div><div class="tooltip-body"><div class="series-name"><span class='top-series-name'>${pointInfo.points[0].seriesName}</span>: </div><div class="value-text"><span class='top-series-value'>${pointInfo.points[0].valueText}</span></div><div class="series-name"><span class='bottom-series-name'>${pointInfo.points[1].seriesName}</span>: </div><div class="value-text"><span class='bottom-series-value'>${pointInfo.points[1].valueText}</span>% </div></div></div>`,
});
function customizePercentageText({ valueText }) {
return `${valueText}%`;
}
function App() {
return (
<Chart
title="Pizza Shop Complaints"
dataSource={dataArray}
palette="Harmony Light"
id="chart"
>
<CommonSeriesSettings argumentField="complaint" />
<Series
name="Complaint frequency"
valueField="count"
axis="frequency"
type="bar"
color="#fac29a"
/>
<Series
name="Cumulative percentage"
valueField="cumulativePercentage"
axis="percentage"
type="spline"
color="#6b71c3"
/>
<ArgumentAxis>
<Label overlappingBehavior="stagger" />
</ArgumentAxis>
<ValueAxis
name="frequency"
position="left"
tickInterval={300}
/>
<ValueAxis
name="percentage"
position="right"
tickInterval={20}
showZero={true}
valueMarginsEnabled={false}
>
<Label customizeText={customizePercentageText} />
<ConstantLine
value={80}
width={2}
color="#fc3535"
dashStyle="dash"
>
<Label visible={false} />
</ConstantLine>
</ValueAxis>
<Tooltip
enabled={true}
shared={true}
customizeTooltip={customizeTooltip}
/>
<Legend
verticalAlignment="top"
horizontalAlignment="center"
/>
</Chart>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const complaintsData = [
{ complaint: 'Cold pizza', count: 780 },
{ complaint: 'Not enough cheese', count: 120 },
{ complaint: 'Underbaked or Overbaked', count: 52 },
{ complaint: 'Delayed delivery', count: 1123 },
{ complaint: 'Damaged pizza', count: 321 },
{ complaint: 'Incorrect billing', count: 89 },
{ complaint: 'Wrong size delivered', count: 222 },
];
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 App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const complaintsData = [
{ complaint: 'Cold pizza', count: 780 },
{ complaint: 'Not enough cheese', count: 120 },
{ complaint: 'Underbaked or Overbaked', count: 52 },
{ complaint: 'Delayed delivery', count: 1123 },
{ complaint: 'Damaged pizza', count: 321 },
{ complaint: 'Incorrect billing', count: 89 },
{ complaint: 'Wrong size delivered', count: 222 },
];
<!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>
#chart {
height: 440px;
}
.tooltip-header {
margin-bottom: 5px;
font-size: 16px;
font-weight: 500;
padding-bottom: 5px;
border-bottom: 1px solid #c5c5c5;
}
.tooltip-body {
width: 170px;
}
.tooltip-body .series-name {
font-weight: normal;
opacity: 0.6;
display: inline-block;
line-height: 1.5;
padding-right: 10px;
width: 126px;
}
.tooltip-body .value-text {
display: inline-block;
line-height: 1.5;
width: 30px;
}
NOTE
Use our DevExpress BI Dashboard to embed interactive business intelligence into your next web app.
The Web Dashboard is a data analysis UI component that you can embed into your ASP.NET Core or Angular, React, and Vue applications with .NET backend. Dashboards allow you to display multiple inter-connected data analysis elements such as grids, charts, maps, gauges, and others: all within an automatically-arranged layout.
The set of components allows you to deploy an all-in-one solution and switch between Viewer and Designer modes directly on the web client (includes adaptive layouts for tablet & mobile).
The Web Dashboard is available as a part of a Universal subscription.