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Excel Cell Style Customization in JavaScript Grid control

08 May 2023 / 4 minutes to read

Conditional cell formatting

Grid cells in the exported Excel can be customized or formatted using excelQueryCellInfo event. In this event, we can format the grid cells of exported PDF document based on the column cell value.

In the below sample, we have set the background color for Freight column in the exported excel by args.cell and backColor property.

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

let grid: Grid = new Grid({
    dataSource: data,
    allowPaging: true,
    allowExcelExport: true,
    toolbar: ['ExcelExport'],
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120, type: 'number' },
        { field: 'CustomerID', width: 140, headerText: 'Customer ID', type: 'string' },
        { field: 'Freight', headerText: 'Freight', textAlign: 'Right', width: 120 },
        { field: 'OrderDate', headerText: 'Order Date', width: 140, format: 'yMd', textAlign: 'Right' }
    ],
    height: 230
});
grid.toolbarClick = (args: Object) => {
    if (args['item'].id === 'Grid_excelexport') {
        grid.excelExport();
    }
}
grid.excelQueryCellInfo = (args: Object) => {
        if(args.column.field == 'Freight'){
            if(args.value < 30) {
                args.style = {backColor: '#99ffcc'};
            }
            else if(args.value < 60) {
                args.style = {backColor: '#ffffb3'};
            }
            else {
                args.style = {backColor: '#ff704d'};
            }
        }
    }
grid.queryCellInfo = (args: Object) => {
        if(args.column.field == 'Freight'){
            if(args.data['Freight'] < 30) {
                args.cell.bgColor = '#99ffcc';
            }
            else if(args.data['Freight'] < 60) {
                args.cell.bgColor = '#ffffb3';
            }
            else {
                args.cell.bgColor = '#ff704d';
            }
        }
    }
grid.appendTo('#Grid');
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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" />

    <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>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Grid'></div>
    </div>
</body>
</html>

Theme

The excel export provides an option to include theme for exported excel document.

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

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

Grid.Inject(Toolbar, ExcelExport, Page);

let grid: Grid = new Grid({
    dataSource: data,
    allowPaging: true,
    allowExcelExport: true,
    toolbar: ['ExcelExport'],
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120, type: 'number' },
        { field: 'CustomerID', width: 140, headerText: 'Customer ID', type: 'string' },
        { field: 'Freight', headerText: 'Freight', textAlign: 'Right', width: 120, format: 'C' },
        { field: 'OrderDate', headerText: 'Order Date', width: 140, format: 'yMd', textAlign: 'Right' }
    ],
    height: 230
});
grid.toolbarClick = (args: Object) => {
    if (args['item'].id === 'Grid_excelexport') {
        let excelExportProperties: ExcelExportProperties = {
            theme:
                {
                    header: { fontName: 'Segoe UI', fontColor: '#666666' },
                    record: { fontName: 'Segoe UI', fontColor: '#666666' },
                    caption: { fontName: 'Segoe UI', fontColor: '#666666' }
                }
        };
        grid.excelExport(excelExportProperties);

    }
}
grid.appendTo('#Grid');
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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" />

    <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>
</head>
<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='Grid'></div>
    </div>
</body>
</html>

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

Rotate a header text to a certain degree in the exported grid

The DataGrid has support to customize the column header styles such as changing text orientation, the font color, and so on in the exported Excel file. To achieve this requirement, use the excelHeaderQueryCellInfo event of the Grid.

The excelHeaderQueryCellInfo will be triggered when creating a column header for the excel document to be exported. Customize the column header in this event.

In the following demo, using the rotation property of the style argument in the excelHeaderQueryCellInfo event, you can rotate the header text of the column header in the excel exported document.

Source
Preview
index.ts
index.html
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import { Grid, Toolbar, ExcelExport, ExcelExportProperties, Page, ActionEventArgs  } from '@syncfusion/ej2-grids';
import { DropDownList } from '@syncfusion/ej2-dropdowns';
import { data } from './datasource.ts';

Grid.Inject(Toolbar, ExcelExport, Page);

let grid: Grid = new Grid({
    dataSource: data,
    allowPaging: true,
    allowExcelExport: true,
    toolbar: ['ExcelExport'],
    columns: [
        { field: 'OrderID', headerText: 'Order ID', textAlign: 'Right', width: 120, type: 'number' },
        { field: 'CustomerID', width: 140, headerText: 'Customer ID', type: 'string', customAttributes:{ class: 'orientationcss' }, textAlign: 'Center' },
        { field: 'Freight', headerText: 'Freight', textAlign: 'Right', width: 120 },
        { field: 'OrderDate', headerText: 'Order Date', textAlign: 'Right', width: 140, format: 'yMd' }
    ],
    created: setHeaderHeight,
    excelHeaderQueryCellInfo: (args) => {
        let textWidth = document.querySelector(".orientationcss > div").scrollWidth;
        if (args.gridCell.column.field == 'Freight') {
            args.style = { backColor: '#99ffcc', vAlign: 'Bottom' };
        }
        else {
            args.style = { vAlign: 'Center', rotation: dropDownListObject.value };
        }
        args.cell.cellHeight = textWidth;
    },
    excelQueryCellInfo: (args) => {
        if (args.column.field == 'Freight') {
            if (args.value < 30) {
                args.style = { backColor: '#99ffcc' };
            }
            else if (args.value < 60) {
                args.style = { backColor: '#ffffb3' };
            }
            else {
                args.style = { backColor: '#ff704d' };
            }
        }
    }
    height: 230
});
grid.appendTo('#Grid');

function setHeaderHeight(args: ActionEventArgs): void {
    let textWidth: number = document.querySelector(".orientationcss > div").scrollWidth;
    let headerCell: NodeList = document.querySelectorAll(".e-headercell");
    for (let i: number = 0; i < headerCell.length; i++) {
        (<HTMLElement>headerCell.item(i)).style.height = textWidth + 'px';
    }
}

grid.toolbarClick = (args: Object) => {
    if (args['item'].id === 'Grid_excelexport') {
        grid.excelExport();
    }
}

let degree = [90, 180, 45, 135, 225, -90];
let dropDownListObject: DropDownList = new DropDownList({
    dataSource: degree,
    placeholder: "Select a degree"
});
dropDownListObject.appendTo('#ddlelement');
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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-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='toolbar-template'>
            <div id='dropdown' style="margin-top:5px">
                <input type="text" tabindex="1" id='ddlelement' />
            </div>
        </div>
        <div id='Grid'></div>
    </div>

</body>
<style>
    .orientationcss .e-headercelldiv {
        transform: rotate(90deg);
    }
</style>
</html>
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