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Passing additional parameters to the server when Exporting in JavaScript Grid control

14 Apr 2021 / 2 minutes to read

You can pass the additional parameter in the query property by invoking addParams method. In the toolbarClick event, you can define params as key and value pair so it will receive at the server side when exporting.

In the below example, we have passed recordcount as 12 using addParams method.

Source
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index.ts
index.html
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import { Grid, Page, Toolbar, PdfExport, ExcelExport } from '@syncfusion/ej2-grids';
import { data } from './datasource.ts';
import { Query } from '@syncfusion/ej2-data';

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

let queryClone: Object;
let grid: Grid = new Grid({
    dataSource: data,
    allowPaging: true,
    allowPdfExport: true,
    allowExcelExport: true,
    toolbar: ['PdfExport', 'ExcelExport'],
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120, type: 'number' },
        { field: 'CustomerID', width: 140, headerText: 'Customer ID', visible: false },
        { field: 'Freight', headerText: 'Freight', textAlign: 'Right', width: 120, format: 'C' },
        { field: 'ShipCity', headerText: 'ShipCity', textAlign: 'Right', width: 140 }
    ],
    height: 230
});
grid.appendTo('#Grid');
grid.toolbarClick = (args: Object) => {
    if (args['item'].id === 'Grid_pdfexport') {
        queryClone = grid.query;
        grid.query = new Query().addParams("recordcount", "12");
        grid.pdfExport();
    }
    if (args['item'].id === 'Grid_excelexport') {
        queryClone = grid.query;
        grid.query = new Query().addParams("recordcount", "12");
        grid.excelExport();
    }
}
grid.pdfExportComplete = () => {
        grid.query = queryClone;
    }
grid.excelExportComplete = () => {
        grid.query = queryClone;
    }
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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/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-grids/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-navigations/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-dropdowns/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-lists/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-inputs/styles/material.css" rel="stylesheet" />
    <link href="//cdn.syncfusion.com/ej2/ej2-calendars/styles/material.css" rel="stylesheet" />
    
    
    
    <link href="//cdn.syncfusion.com/ej2/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';
    }
    </style>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Grid'></div>        
    </div>
</body>
</html>
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