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Demo
App.htm
App.js

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title id='Description'>
        This is an example of React Chart Pie Series with Legend. In order to show the legend you have to set the showLegend setting to true. You can also see how to format the layout of the legend via the legendLayout setting.
    </title>
    <meta name="description" content="This React Chart demo showcases how to create a Polar Chart with Legends'" />
    <link rel="stylesheet" href="../../../jqwidgets/styles/jqx.base.css" type="text/css" />
    <script type="text/javascript" src="../../../jqwidgets/jqxcore.js"></script>
    <script type="text/javascript" src="../../../jqwidgets/jqxdraw.js"></script>
    <script type="text/javascript" src="../../../jqwidgets/jqxchart.core.js"></script>
    <script type="text/javascript" src="../../../jqwidgets/jqxdata.js"></script>
    <script type="text/javascript" src="../../../scripts/demos.js"></script>
</head>
<body>
    <div class="example-description" style="margin-bottom:3em">
        This is an example of React Chart Pie Series with Legend. In order to show the legend you have to set the showLegend setting to true. You can also see how to format the layout of the legend via the legendLayout setting.
    </div>
    <div id="app"></div>
    <script src="../build/chart_pieserieslegend.bundle.js"></script>
</body>
</html>

import React from 'react';import ReactDOM from 'react-dom';import JqxChart from '../../../jqwidgets-react/react_jqxchart.js';class App extends React.Component {
    render() {
        let source =
            {
                datatype: 'csv',
                datafields: [
                    { name: 'Browser' },
                    { name: 'Share' }
                ],
                url: '../sampledata/mobile_browsers_share_dec2011.txt'
            };
        let dataAdapter = new $.jqx.dataAdapter(source, { async: false, autoBind: true, loadError: (xhr, status, error) => { alert('Error loading "' + source.url + '" : ' + error); } });

        let legendLayout = { left: 700, top: 160, width: 300, height: 200, flow: 'vertical' };

        let padding = { left: 5, top: 5, right: 5, bottom: 5 };

        let titlePadding = { left: 0, top: 0, right: 0, bottom: 10 };

        let seriesGroups =
            [
                {
                    type: 'pie',
                    showLabels: true,
                    series:
                    [
                        {
                            dataField: 'Share',
                            displayText: 'Browser',
                            labelRadius: 170,
                            initialAngle: 15,
                            radius: 145,
                            centerOffset: 0,
                            formatFunction: (value) => {
                                if (isNaN(value))
                                    return value;
                                return parseFloat(value) + '%';
                            },
                        }
                    ]
                }
            ];
        return (
            <JqxChart style={{ width: 850, height: 500 }}
                title={'Mobile browsers share'} description={'(source: wikipedia.org)'}
                showLegend={true} enableAnimations={true} padding={padding} showBorderLine={true}
                titlePadding={titlePadding} source={dataAdapter} legendLayout={legendLayout}
                colorScheme={'scheme03'} seriesGroups={seriesGroups}
            />
        )
    }
}

ReactDOM.render(<App />, document.getElementById('app'));