cell-json-binding.tsx

import * as React from "react";
import * as ReactDOM from "react-dom";
import { HeatMapComponent, Legend, Tooltip, ILoadedEventArgs, HeatMapTheme, Inject, Adaptor } from '@syncfusion/ej2-react-heatmap';
import { SampleBase } from '../common/sample-base';

const SAMPLE_CSS: any = `
#control-container {
    padding: 0px !important;
}
#source{
    float: right; margin-right: 10p
}`;
/**
 * Heatmap JSON data binding sample
 */
export class JsonCell extends SampleBase<{}, {}> {
    private jsonCellData: Object = [
        { 'rowid': 'France', 'columnid': '2010', 'value': '77.6' },
        { 'rowid': 'France', 'columnid': '2011', 'value': '79.4' },
        { 'rowid': 'France', 'columnid': '2012', 'value': '80.8' },
        { 'rowid': 'France', 'columnid': '2013', 'value': '86.6' },
        { 'rowid': 'France', 'columnid': '2014', 'value': '83.7' },
        { 'rowid': 'France', 'columnid': '2015', 'value': '84.5' },
        { 'rowid': 'France', 'columnid': '2016', 'value': '82.6' },
        { 'rowid': 'USA', 'columnid': '2010', 'value': '60.6' },
        { 'rowid': 'USA', 'columnid': '2011', 'value': '65.4' },
        { 'rowid': 'USA', 'columnid': '2012', 'value': '70.8' },
        { 'rowid': 'USA', 'columnid': '2013', 'value': '73.8' },
        { 'rowid': 'USA', 'columnid': '2014', 'value': '75.3' },
        { 'rowid': 'USA', 'columnid': '2015', 'value': '77.5' },
        { 'rowid': 'USA', 'columnid': '2016', 'value': '77.6' },
        { 'rowid': 'Spain', 'columnid': '2010', 'value': '64.9' },
        { 'rowid': 'Spain', 'columnid': '2011', 'value': '52.6' },
        { 'rowid': 'Spain', 'columnid': '2012', 'value': '60.8' },
        { 'rowid': 'Spain', 'columnid': '2013', 'value': '65.6' },
        { 'rowid': 'Spain', 'columnid': '2014', 'value': '52.6' },
        { 'rowid': 'Spain', 'columnid': '2015', 'value': '68.5' },
        { 'rowid': 'Spain', 'columnid': '2016', 'value': '75.6' },
        { 'rowid': 'China', 'columnid': '2010', 'value': '55.6' },
        { 'rowid': 'China', 'columnid': '2011', 'value': '52.3' },
        { 'rowid': 'China', 'columnid': '2012', 'value': '54.8' },
        { 'rowid': 'China', 'columnid': '2013', 'value': '51.1' },
        { 'rowid': 'China', 'columnid': '2014', 'value': '55.6' },
        { 'rowid': 'China', 'columnid': '2015', 'value': '56.9' },
        { 'rowid': 'China', 'columnid': '2016', 'value': '59.3' },
        { 'rowid': 'Italy', 'columnid': '2010', 'value': '43.6' },
        { 'rowid': 'Italy', 'columnid': '2011', 'value': '43.2' },
        { 'rowid': 'Italy', 'columnid': '2012', 'value': '55.8' },
        { 'rowid': 'Italy', 'columnid': '2013', 'value': '50.1' },
        { 'rowid': 'Italy', 'columnid': '2014', 'value': '48.5' },
        { 'rowid': 'Italy', 'columnid': '2015', 'value': '50.7' },
        { 'rowid': 'Italy', 'columnid': '2016', 'value': '52.4' },
        { 'rowid': 'UK', 'columnid': '2010', 'value': '28.2' },
        { 'rowid': 'UK', 'columnid': '2011', 'value': '31.6' },
        { 'rowid': 'UK', 'columnid': '2012', 'value': '29.8' },
        { 'rowid': 'UK', 'columnid': '2013', 'value': '33.1' },
        { 'rowid': 'UK', 'columnid': '2014', 'value': '32.6' },
        { 'rowid': 'UK', 'columnid': '2015', 'value': '34.4' },
        { 'rowid': 'UK', 'columnid': '2016', 'value': '35.8' },
        { 'rowid': 'Germany', 'columnid': '2010', 'value': '26.8' },
        { 'rowid': 'Germany', 'columnid': '2011', 'value': '29' },
        { 'rowid': 'Germany', 'columnid': '2012', 'value': '26.8' },
        { 'rowid': 'Germany', 'columnid': '2013', 'value': '27.6' },
        { 'rowid': 'Germany', 'columnid': '2014', 'value': '33' },
        { 'rowid': 'Germany', 'columnid': '2015', 'value': '35' },
        { 'rowid': 'Germany', 'columnid': '2016', 'value': '35.6' },
        { 'rowid': 'Mexico', 'columnid': '2010', 'value': '23.2' },
        { 'rowid': 'Mexico', 'columnid': '2011', 'value': '24.9' },
        { 'rowid': 'Mexico', 'columnid': '2012', 'value': '30.1' },
        { 'rowid': 'Mexico', 'columnid': '2013', 'value': '22.2' },
        { 'rowid': 'Mexico', 'columnid': '2014', 'value': '29.3' },
        { 'rowid': 'Mexico', 'columnid': '2015', 'value': '32.1' },
        { 'rowid': 'Mexico', 'columnid': '2016', 'value': '35' },
        { 'rowid': 'Thailand', 'columnid': '2010', 'value': '15.9' },
        { 'rowid': 'Thailand', 'columnid': '2011', 'value': '19.8' },
        { 'rowid': 'Thailand', 'columnid': '2012', 'value': '21.8' },
        { 'rowid': 'Thailand', 'columnid': '2013', 'value': '23.5' },
        { 'rowid': 'Thailand', 'columnid': '2014', 'value': '24.8' },
        { 'rowid': 'Thailand', 'columnid': '2015', 'value': '29.9' },
        { 'rowid': 'Thailand', 'columnid': '2016', 'value': '32.6' },
        { 'rowid': 'Austria', 'columnid': '2010', 'value': '22' },
        { 'rowid': 'Austria', 'columnid': '2011', 'value': '21.3' },
        { 'rowid': 'Austria', 'columnid': '2012', 'value': '24.2' },
        { 'rowid': 'Austria', 'columnid': '2013', 'value': '23.2' },
        { 'rowid': 'Austria', 'columnid': '2014', 'value': '25' },
        { 'rowid': 'Austria', 'columnid': '2015', 'value': '26.7' },
        { 'rowid': 'Austria', 'columnid': '2016', 'value': '28.1' },
    ];
    render() {
        return (
            <div className='control-pane'>
                <style>
                    {SAMPLE_CSS}
                </style>
                <div className='control-section'>
                    <HeatMapComponent id='heatmap-container'
                        titleSettings={{
                            text: 'Most Visited Destinations by International Tourist Arrivals',
                            textStyle: {
                                size: '15px',
                                fontWeight: '500',
                                fontStyle: 'Normal',
                                fontFamily: 'Segoe UI'
                            }
                        }}
                        xAxis={{
                            labels: ['Austria', 'China', 'France', 'Germany', 'Italy', 'Mexico', 'Spain', 'Thailand', 'UK', 'USA'],
                        }}
                        yAxis={{
                            labels: ['2010', '2011', '2012', '2013', '2014', '2015', '2016'],
                        }}
                        dataSource={{
                            data: this.jsonCellData,
                            isJsonData: true,
                            adaptorType: 'Cell',
                            xDataMapping: 'rowid',
                            yDataMapping: 'columnid',
                            valueMapping: 'value'
                        }}
                        cellSettings={{
                            border: {
                                radius: 4,
                                width: 1,
                                color: 'white'
                            },
                            showLabel: true,
                            format: '{value} M',
                        }}
                        load={this.load.bind(this)}
                        paletteSettings={{
                            palette: [{ color: '#DCD57E' },
                            { color: '#A6DC7E' },
                            { color: '#7EDCA2' },
                            { color: '#6EB5D0' }
                            ],
                        }}>
                        <Inject services={[Legend, Tooltip, Adaptor]} />
                    </HeatMapComponent>
                 </div>
                 <div id="source">Source:
                    <a href="https://en.wikipedia.org/wiki/World_Tourism_rankings" target="_blank">https://en.wikipedia.org/</a>
                </div>

                <div id="action-description">
                    <p>
                        This sample visualizes the number of international tourist arrivals in millions of the most visited
                        destinations in the world.
                    </p>
                </div>
                <div id="description">
                    <p>
                        In this example, you can see how to bind JSON data and configure the Heatmap using the data adaptor support.
                        You can bind the JSON data with information for each individual cell to the Heatmap using <code>isJsonData
                        </code> and by defining the <code>adaptorType </code> properties. In cell JSON data, the value for each
                        cell is mapped using the <code>xDataMapping </code>, <code>yDataMapping </code> and <code>valueMapping
                         </code>properties.
                    </p>
                    <p>
                        Tooltip is enabled in this example, to see the tooltip in action, hover a point or tap on a
                        point in touch enabled devices.
                    </p>
                    <br></br>
                    <p> <b>Injecting Module</b></p>
                    <p>
                        Heatmap component features are segregated into individual feature-wise modules. To use data adaptor support,
                        we need to inject <code>Adaptor </code> module using <code>Heatmap.Inject(Adaptor) </code> method, to use a tooltip,
                        inject the <code>Tooltip </code> module using the <code>Heatmap.Inject(Tooltip) </code> method, and use a legend
                        by injecting the <code>Legend </code> module using the <code>Heatmap.Inject(Legend) </code> method.
                    </p>
                </div>
            </div >
        );
    }

    public load(args: ILoadedEventArgs): void {
        let selectedTheme: string = location.hash.split('/')[1];
        selectedTheme = selectedTheme ? selectedTheme : 'Material';
        args.heatmap.theme = (selectedTheme.charAt(0).toUpperCase() + selectedTheme.slice(1)) as HeatMapTheme;
    };
}