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Export Several Charts
The DevExpress.viz.exportWidgets(widgetInstances, options) method allows you to export several charts to a single image or document. The widgetInstances parameter accepts an array with the following format:
[
[ widgetInstance0_1, widgetInstance0_2, ..., widgetInstance0_N ],
[ widgetInstance1_1, widgetInstance1_2, ..., widgetInstance1_M ],
...
[ widgetInstanceP_1, widgetInstanceP_2, ..., widgetInstanceP_R ]
]
Each nested array contains UI 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.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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import React 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 { allMedals, goldMedals } from './data.js';
import { exportWidgets } from 'devextreme/viz/export';
class App extends React.Component {
constructor(props) {
super(props);
this.chartRef = React.createRef();
this.pieChartRef = React.createRef();
this.onClick = this.onClick.bind(this);
}
render() {
return (
<div id="chart-demo">
<div className="charts">
<Chart
id="chart"
ref={this.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={this.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={this.onClick}
/>
</div>
</div>
);
}
get chart() {
return this.chartRef.current.instance;
}
get pieChart() {
return this.pieChartRef.current.instance;
}
onClick() {
exportWidgets([[this.chart, this.pieChart]], {
fileName: 'chart',
format: 'PNG'
});
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('app')
);
<!DOCTYPE html>
<html>
<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=1.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.4.1/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.js');
</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;
}
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
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'devextreme-react': 'npm:devextreme-react@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js',
// 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'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});