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Custom Aggregate with Exporting

08 May 2023 / 1 minute to read

The following example shows how to export the grid with custom aggregate.

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index.js
index.html
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ej.grids.Grid.Inject( ej.grids.Aggregate, ej.grids.PdfExport, ej.grids.ExcelExport, ej.grids.Toolbar);

var grid = new ej.grids.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) => {
  if (args.item.id === 'Grid_pdfexport') {
    grid.pdfExport();
  }
  if (args.item.id === 'Grid_excelexport') {
    grid.excelExport();
  }
  if (args.item.id === 'Grid_csvexport') {
    grid.csvExport();
  }
}

function customAggregateFn(data) {
  if (data.result)
    return data.result.filter(item => item['ShipCountry'] === 'Brazil').length;
  else {
    return data.filter(item => item['ShipCountry'] === 'Brazil').length;
  }
}
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<!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="//cdn.syncfusion.com/ej2/21.2.3/ej2-base/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-grids/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-buttons/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-popups/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-richtexteditor/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-navigations/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-dropdowns/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-lists/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-inputs/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-calendars/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-notifications/styles/material.css" rel="stylesheet">
    <link href="//cdn.syncfusion.com/ej2/21.2.3/ej2-splitbuttons/styles/material.css" rel="stylesheet">

    
    
    <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/ej2/21.2.3/dist/ej2.min.js" type="text/javascript"></script>
<script src="es5-datasource.js" type="text/javascript"></script>
</head>
<body>
    
    <div id="container">
        <div id="Grid"></div>
    </div>

<script>
var ele = document.getElementById('container');
if(ele) {
    ele.style.visibility = "visible";
 }   
        </script>
<script src="index.js" type="text/javascript"></script>
</body></html>
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