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Backend API
import React, { useCallback, useRef } from 'react';
import Chart, { Series, Label, Legend } from 'devextreme-react/chart';
import PieChart, { Series as PieSeries, Label as PieLabel, Connector } from 'devextreme-react/pie-chart';
import { Button } from 'devextreme-react/button';
import { exportWidgets } from 'devextreme/viz/export';
import { allMedals, goldMedals } from './data.ts';
function App() {
const chartRef = useRef(null);
const pieChartRef = useRef(null);
const onClick = useCallback(() => {
exportWidgets([[chartRef.current.instance(), pieChartRef.current.instance()]], {
fileName: 'chart',
format: 'PNG',
});
}, []);
return (
<div id="chart-demo">
<div className="charts">
<Chart
id="chart"
ref={chartRef}
dataSource={goldMedals}
rotated={true}
title="Olympic Gold Medals in 2008"
>
<Series
type="bar"
argumentField="country"
valueField="medals"
color="#f3c40b"
>
<Label visible={true} />
</Series>
<Legend visible={false} />
</Chart>
<PieChart
id="pieChart"
ref={pieChartRef}
dataSource={allMedals}
palette="Harmony Light"
title={'Total Olympic Medals\n in 2008'}
>
<PieSeries
argumentField="country"
valueField="medals"
>
<PieLabel visible={true}>
<Connector visible={true} />
</PieLabel>
</PieSeries>
</PieChart>
</div>
<div className="controls-pane">
<Button
id="export"
width={145}
icon="export"
text="Export"
type="default"
onClick={onClick}
/>
</div>
</div>
);
}
export default App;
import React, { useCallback, useRef } from 'react';
import Chart, { Series, Label, Legend } from 'devextreme-react/chart';
import PieChart, {
Series as PieSeries,
Label as PieLabel,
Connector,
} from 'devextreme-react/pie-chart';
import { Button } from 'devextreme-react/button';
import { exportWidgets } from 'devextreme/viz/export';
import { allMedals, goldMedals } from './data.js';
function App() {
const chartRef = useRef(null);
const pieChartRef = useRef(null);
const onClick = useCallback(() => {
exportWidgets([[chartRef.current.instance(), pieChartRef.current.instance()]], {
fileName: 'chart',
format: 'PNG',
});
}, []);
return (
<div id="chart-demo">
<div className="charts">
<Chart
id="chart"
ref={chartRef}
dataSource={goldMedals}
rotated={true}
title="Olympic Gold Medals in 2008"
>
<Series
type="bar"
argumentField="country"
valueField="medals"
color="#f3c40b"
>
<Label visible={true} />
</Series>
<Legend visible={false} />
</Chart>
<PieChart
id="pieChart"
ref={pieChartRef}
dataSource={allMedals}
palette="Harmony Light"
title={'Total Olympic Medals\n in 2008'}
>
<PieSeries
argumentField="country"
valueField="medals"
>
<PieLabel visible={true}>
<Connector visible={true} />
</PieLabel>
</PieSeries>
</PieChart>
</div>
<div className="controls-pane">
<Button
id="export"
width={145}
icon="export"
text="Export"
type="default"
onClick={onClick}
/>
</div>
</div>
);
}
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 allMedals = [{
country: 'USA',
medals: 110,
}, {
country: 'China',
medals: 100,
}, {
country: 'Russia',
medals: 71,
}, {
country: 'UK',
medals: 47,
}, {
country: 'Australia',
medals: 46,
}, {
country: 'Germany',
medals: 41,
}, {
country: 'France',
medals: 41,
}, {
country: 'South Korea',
medals: 31,
}];
export const goldMedals = [{
country: 'China',
medals: 51,
}, {
country: 'USA',
medals: 36,
}, {
country: 'Russia',
medals: 22,
}, {
country: 'UK',
medals: 19,
}, {
country: 'Germany',
medals: 16,
}, {
country: 'Australia',
medals: 14,
}, {
country: 'South Korea',
medals: 13,
}, {
country: 'France',
medals: 7,
}];
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@2.2.12/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 allMedals = [
{
country: 'USA',
medals: 110,
},
{
country: 'China',
medals: 100,
},
{
country: 'Russia',
medals: 71,
},
{
country: 'UK',
medals: 47,
},
{
country: 'Australia',
medals: 46,
},
{
country: 'Germany',
medals: 41,
},
{
country: 'France',
medals: 41,
},
{
country: 'South Korea',
medals: 31,
},
];
export const goldMedals = [
{
country: 'China',
medals: 51,
},
{
country: 'USA',
medals: 36,
},
{
country: 'Russia',
medals: 22,
},
{
country: 'UK',
medals: 19,
},
{
country: 'Germany',
medals: 16,
},
{
country: 'Australia',
medals: 14,
},
{
country: 'South Korea',
medals: 13,
},
{
country: 'France',
medals: 7,
},
];
<!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-demo {
height: 460px;
}
.charts {
width: 820px;
margin: 0 auto;
height: 374px;
margin-bottom: 40px;
font-size: 0;
}
#chart,
#pieChart {
width: 395px;
height: 100%;
display: inline-block;
vertical-align: top;
}
#chart {
margin-right: 30px;
}
.controls-pane {
text-align: center;
}
Each nested array contains component instances that should be in the same row in the exported document. In this demo, chartInstance
and pieChartInstance
occupy the only row in the document.
The options parameter accepts an object whose fields allow you to configure export properties. In this demo, we specify the fileName
and format
. Refer to the method description for information on other available fields.