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PDF Cell Style Customization in JavaScript Tree Grid control

08 May 2023 / 3 minutes to read

Conditional cell formatting

TreeGrid cells in the exported PDF can be customized or formatted using pdfQueryCellInfo event. In this event, we can format the treegrid cells of exported PDF document based on the column cell value.

In the below sample, we have set the background color for Duration column in the exported document by args.cell and backgroundColor property.

Source
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index.ts
index.html
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import { TreeGrid, Page, Toolbar, PdfExport, PdfExportProperties, RowDataBoundEventArgs, PdfQueryCellInfoEventArgs } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(Page, Toolbar, PdfExport);

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    allowPdfExport: true,
    allowPaging: true,
    height: 220,
    pageSettings: {pageSize: 7},
    toolbar: ['PdfExport'],
    treeColumnIndex: 1,
    columns: [
            { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
            { field: 'taskName', headerText: 'Task Name', width: 180, textAlign: 'Left' },
            {
                field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd'
            },
            { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');
treeGridObj.toolbarClick = (args: Object) => {
if (args['item'].text === 'PDF Export') {
        treeGridObj.pdfExport();
    }
}
treeGridObj.pdfQueryCellInfo = (args: PdfQueryCellInfoEventArgs) => {
        if(args.column.field == 'duration'){
            if(+args.value === 0 || args.value === "") {
                args.style = {backgroundColor: '#336c12'};
            }
            else if(args.value < 3) {
                args.style = {backgroundColor: '#7b2b1d'};
            }
        }
    }
treeGridObj.queryCellInfo = (args: RowDataBoundEventArgs) => {
    if (args.data['duration'] == 0 && args.column.field === 'duration' ) {
        args.cell.style.background= '#336c12';
    } else if (args.data['duration'] < 3 && args.column.field === 'duration') {
        args.cell.style.background= '#7b2b1d';
    }
}
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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-treegrid/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-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-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>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>   
    </div>
</body>
</html>

Theme

PDF export provides an option to include theme for exported PDF document.

To apply theme in exported PDF, define the theme in exportProperties .

Source
Preview
index.ts
index.html
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import { TreeGrid, Page, Toolbar, PdfExportProperties, PdfExport } from '@syncfusion/ej2-treegrid';
import { sampleData } from './datasource.ts';

TreeGrid.Inject(Page, Toolbar, PdfExport);

let treeGridObj: TreeGrid = new TreeGrid({
    dataSource: sampleData,
    childMapping: 'subtasks',
    allowPdfExport: true,
    allowPaging: true,
    height: 220,
    pageSettings: {pageSize: 7},
    toolbar: ['PdfExport'],
    treeColumnIndex: 1,
    columns: [
            { field: 'taskID', headerText: 'Task ID', width: 90, textAlign: 'Right' },
            { field: 'taskName', headerText: 'Task Name', width: 180, textAlign: 'Left' },
            {
                field: 'startDate', headerText: 'Start Date', width: 90, textAlign: 'Right', type: 'date', format: 'yMd'
            },
            { field: 'duration', headerText: 'Duration', width: 80, textAlign: 'Right' }
    ]
});

treeGridObj.appendTo('#TreeGrid');
treeGridObj.toolbarClick = (args: Object) => {
if (args['item'].text === 'PDF Export') {
        let exportProperties: PdfExportProperties = {
            theme: {
                header: {
                    fontColor: '#64FA50', fontName: 'Calibri', fontSize: 17, bold: true, border: { color: '#64FA50', lineStyle: 'Thin' }
                },
                record: {
                    fontColor: '#64FA50', fontName: 'Calibri', fontSize: 17, bold: true
                }
            }
        };
        treeGridObj.pdfExport(exportProperties);
    }
}
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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-treegrid/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-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-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>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='TreeGrid'></div>   
    </div>
</body>
</html>

By default, material theme is applied to exported PDF document.

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