jqwidgets-scripts-custom/demos/React/app/grid/groupingaggregates/app.js

jQWidgets is an advanced jQuery, Angular 7, Vue, React, ASP .NET MVC, Custom Elements and HTML5 UI framework.

import React from 'react';
import ReactDOM from 'react-dom';

import JqxGrid from '../../../jqwidgets-react/react_jqxgrid.js';

class App extends React.Component {
    render() {
        let data = generatedata(50);

        let source =
            {
                localdata: data,
                datafields:
                [
                    { name: 'firstname', type: 'string' },
                    { name: 'lastname', type: 'string' },
                    { name: 'productname', type: 'string' },
                    { name: 'date', type: 'date' },
                    { name: 'quantity', type: 'number' },
                    { name: 'price', type: 'number' },
                    { name: 'total', type: 'number' }
                ],
                datatype: "array",
                updaterow: (rowid, rowdata) => {
                    // synchronize with the server - send update command   
                }
            };

        let dataAdapter = new $.jqx.dataAdapter(source);

        let columns =
            [
                { text: 'First Name', groupable: true, aggregates: ["count"], datafield: 'firstname', width: 100 },
                { text: 'Last Name', groupable: true, aggregates: ["count"], datafield: 'lastname', width: 100 },
                { text: 'Product', groupable: true, columntype: 'dropdownlist', datafield: 'productname', width: 200 },
                { text: 'Quantity', datafield: 'quantity', aggregates: ["sum"], width: 70, cellsalign: 'right' },
                { text: 'Price', datafield: 'price', aggregates: ["sum"], cellsalign: 'right', width: 100, cellsformat: 'c2' },
                {
                    text: 'Total', datafield: 'total', aggregates: ["sum"], cellsalign: 'right', cellsformat: 'c2',
                    cellsrenderer: (row, column, value, defaultRender, rowData) => {
                        if (value.toString().indexOf("Sum") >= 0) {
                            return defaultRender.replace("Sum", "Total");
                        }
                    },
                    aggregatesrenderer: (aggregates, column, element) => {
                        var renderstring = '<div style="position: relative; margin-top: 4px; margin-right:5px; text-align: right; overflow: hidden;">' + "Total" + ': ' + aggregates.sum + '</div>';
                        return renderstring;
                    }
                }
            ];

        return (
            <JqxGrid
                width={850} source={dataAdapter} groupable={true}
                showgroupaggregates={true} showstatusbar={true}
                showaggregates={true} statusbarheight={25} columns={columns}
                selectionmode={'singlecell'} groups={['price']}
            />
        )
    }
}

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