Custom aggregate with exporting in EJ2 TypeScript Grid control

13 Apr 20235 minutes to read
The following example shows how to export the grid with custom aggregate.
index.ts
index.html
import { Grid, Aggregate, Toolbar, ExcelExport, PdfExport } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';
import { ClickEventArgs } from '@syncfusion/ej2-navigations';

Grid.Inject(Toolbar, ExcelExport, PdfExport, Aggregate);

function customAggregateFn (data: any) {
if(data.result)
return data.result.filter(item => item['ShipCountry'] === 'Brazil').length;
 else {
  return data.filter(item => item['ShipCountry'] === 'Brazil').length;
 }
}

let grid: Grid = new Grid({
  dataSource: data
  allowExcelExport: true,
  allowPdfExport: true,
  toolbar: ['ExcelExport', 'PdfExport', 'CsvExport'],
  columns: [
    { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120 },
    { field: 'CustomerID', headerText: 'Customer ID', width: 150 },
    { field: 'Freight', headerText: 'Freight', width: 150, format: 'C2' },
    { field: 'ShipCountry', headerText: 'Ship Name', width: 150 }
  ],
  height: 268,
  aggregates: [{
    columns: [{
      type: 'Custom',
      customAggregate: customAggregateFn,
      columnName: 'ShipCountry',
      footerTemplate: 'Brazil Count: ${Custom}'
    }]
  }]
});
grid.appendTo('#Grid');

grid.toolbarClick = (args: ClickEventArgs) => {
  if (args.item.id === 'Grid_pdfexport') {
    grid.pdfExport();
  }
  if (args.item.id === 'Grid_excelexport') {
    grid.excelExport();
  }
  if (args.item.id === 'Grid_csvexport') {
    grid.csvExport();
  }
}
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Grid</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript Grid Control" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-richtexteditor/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-calendars/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-notifications/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-splitbuttons/styles/material.css" rel="stylesheet" />

    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
    <style>
        .e-row[aria-selected="true"] .e-customizedExpandcell {
            background-color: #e0e0e0;
        }
        .e-grid.e-gridhover tr[role='row']:hover {
            background-color: #eee;
        }
        .e-expand::before {
        content: '\e5b8';
    }
    .empImage {
        margin: 6px 16px;
        float: left;
        width: 50px;
        height: 50px;
    }
    </style>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Grid'></div>
    </div>
</body>
</html>