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Header and Footer

ExcelJS library allows you to customize worksheets outside the exported cell area. This demo uses this functionality to add a header (a title before exported data) and a footer (a note after exported data).

Review the onExporting handler to see the data export code. The functions that create header and footer sections utilize the following customization features:

www.wikipedia.org
Backend API
<div class="long-title"> <h3>Country Area, Population, and GDP Structure</h3> </div> <dx-data-grid id="gridContainer" [dataSource]="countries" keyExpr="ID" [showBorders]="true" (onExporting)="onExporting($event)" > <dxo-export [enabled]="true"></dxo-export> <dxi-column dataField="Country"></dxi-column> <dxi-column dataField="Area"> </dxi-column> <dxi-column caption="Population"> <dxi-column caption="Total" dataField="Population_Total" format="fixedPoint" > </dxi-column> <dxi-column caption="Urban" dataField="Population_Urban" format="percent"> </dxi-column> </dxi-column> <dxi-column caption="Nominal GDP"> <dxi-column caption="Total, mln $" dataField="GDP_Total" format="fixedPoint" sortOrder="desc" > </dxi-column> <dxi-column caption="By Sector"> <dxi-column caption="Agriculture" [width]="95" dataField="GDP_Agriculture" > <dxo-format type="percent" [precision]="1"> </dxo-format> </dxi-column> <dxi-column caption="Industry" [width]="80" dataField="GDP_Industry"> <dxo-format type="percent" [precision]="1"> </dxo-format> </dxi-column> <dxi-column caption="Services" [width]="85" dataField="GDP_Services"> <dxo-format type="percent" [precision]="1"> </dxo-format> </dxi-column> </dxi-column> </dxi-column> </dx-data-grid>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule, BrowserTransferStateModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxDataGridModule, DxTemplateModule } from 'devextreme-angular'; import { Workbook } from 'exceljs'; import { saveAs } from 'file-saver-es'; // Our demo infrastructure requires us to use 'file-saver-es'. We recommend that you use the official 'file-saver' package in your applications. import { exportDataGrid } from 'devextreme/excel_exporter'; import { Service, Country } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service], }) export class AppComponent { countries: Country[]; constructor(service: Service) { this.countries = service.getCountries(); } onExporting(e) { const workbook = new Workbook(); const worksheet = workbook.addWorksheet('CountriesPopulation'); exportDataGrid({ component: e.component, worksheet, topLeftCell: { row: 4, column: 1 }, }).then((cellRange) => { // header const headerRow = worksheet.getRow(2); headerRow.height = 30; worksheet.mergeCells(2, 1, 2, 8); headerRow.getCell(1).value = 'Country Area, Population, and GDP Structure'; headerRow.getCell(1).font = { name: 'Segoe UI Light', size: 22 }; headerRow.getCell(1).alignment = { horizontal: 'center' }; // footer const footerRowIndex = cellRange.to.row + 2; const footerRow = worksheet.getRow(footerRowIndex); worksheet.mergeCells(footerRowIndex, 1, footerRowIndex, 8); footerRow.getCell(1).value = 'www.wikipedia.org'; footerRow.getCell(1).font = { color: { argb: 'BFBFBF' }, italic: true }; footerRow.getCell(1).alignment = { horizontal: 'right' }; }).then(() => { workbook.xlsx.writeBuffer().then((buffer) => { saveAs(new Blob([buffer], { type: 'application/octet-stream' }), 'CountriesPopulation.xlsx'); }); }); } } @NgModule({ imports: [ BrowserModule, BrowserTransferStateModule, DxDataGridModule, DxTemplateModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #gridContainer sup { font-size: 0.8em; vertical-align: super; line-height: 0; } ::ng-deep .long-title h3 { font-family: 'Segoe UI Light', 'Helvetica Neue Light', 'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana; font-weight: 200; font-size: 28px; text-align: center; margin-bottom: 20px; }
import { Injectable } from '@angular/core'; export class Country { ID: number; Country: string; Area: number; Population_Urban: number; Population_Rural: number; Population_Total: number; GDP_Agriculture: number; GDP_Industry: number; GDP_Services: number; GDP_Total: number; } const countries: Country[] = [{ ID: 1, Country: 'Brazil', Area: 8515767, Population_Urban: 0.85, Population_Rural: 0.15, Population_Total: 205809000, GDP_Agriculture: 0.054, GDP_Industry: 0.274, GDP_Services: 0.672, GDP_Total: 2353025, }, { ID: 2, Country: 'China', Area: 9388211, Population_Urban: 0.54, Population_Rural: 0.46, Population_Total: 1375530000, GDP_Agriculture: 0.091, GDP_Industry: 0.426, GDP_Services: 0.483, GDP_Total: 10380380, }, { ID: 3, Country: 'France', Area: 675417, Population_Urban: 0.79, Population_Rural: 0.21, Population_Total: 64529000, GDP_Agriculture: 0.019, GDP_Industry: 0.183, GDP_Services: 0.798, GDP_Total: 2846889, }, { ID: 4, Country: 'Germany', Area: 357021, Population_Urban: 0.75, Population_Rural: 0.25, Population_Total: 81459000, GDP_Agriculture: 0.008, GDP_Industry: 0.281, GDP_Services: 0.711, GDP_Total: 3859547, }, { ID: 5, Country: 'India', Area: 3287590, Population_Urban: 0.32, Population_Rural: 0.68, Population_Total: 1286260000, GDP_Agriculture: 0.174, GDP_Industry: 0.258, GDP_Services: 0.569, GDP_Total: 2047811, }, { ID: 6, Country: 'Italy', Area: 301230, Population_Urban: 0.69, Population_Rural: 0.31, Population_Total: 60676361, GDP_Agriculture: 0.02, GDP_Industry: 0.242, GDP_Services: 0.738, GDP_Total: 2147952, }, { ID: 7, Country: 'Japan', Area: 377835, Population_Urban: 0.93, Population_Rural: 0.07, Population_Total: 126920000, GDP_Agriculture: 0.012, GDP_Industry: 0.275, GDP_Services: 0.714, GDP_Total: 4616335, }, { ID: 8, Country: 'Russia', Area: 17098242, Population_Urban: 0.74, Population_Rural: 0.26, Population_Total: 146544710, GDP_Agriculture: 0.039, GDP_Industry: 0.36, GDP_Services: 0.601, GDP_Total: 1857461, }, { ID: 9, Country: 'United States', Area: 9147420, Population_Urban: 0.81, Population_Rural: 0.19, Population_Total: 323097000, GDP_Agriculture: 0.0112, GDP_Industry: 0.191, GDP_Services: 0.797, GDP_Total: 17418925, }, { ID: 10, Country: 'United Kingdom', Area: 244820, Population_Urban: 0.82, Population_Rural: 0.18, Population_Total: 65097000, GDP_Agriculture: 0.007, GDP_Industry: 0.21, GDP_Services: 0.783, GDP_Total: 2945146, }]; @Injectable() export class Service { getCountries(): Country[] { return countries; } }
// In real applications, you should not transpile code in the browser. // You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/localization.js': { 'esModule': true, }, 'exceljs': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.17', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.17', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.17', '@angular/forms': 'npm:@angular/forms@12.2.17', '@angular/common': 'npm:@angular/common@12.2.17', '@angular/compiler': 'npm:@angular/compiler@12.2.17', 'tslib': 'npm:tslib@2.3.1/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js', 'exceljs': 'npm:exceljs@4.3.0/dist/exceljs.min.js', 'file-saver-es': 'npm:file-saver-es@2.0.5/dist/FileSaver.min.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@23.1.6/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@23.1.6/bundles/dx.all.js', 'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.6.2/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.2', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.49', 'devextreme-angular': 'npm:devextreme-angular@23.1.6', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.12', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.4/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.4/parser-html.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.12/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common@12.2.17/*/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devextreme-angular@23.1.6/*/package.json', 'npm:devextreme-angular@23.1.6/ui/*/package.json', 'npm:devextreme-angular@23.1.6/package.json', 'npm:devexpress-diagram@2.2.2/package.json', 'npm:devexpress-gantt@4.1.49/package.json', ], }; System.config(window.config);
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/23.1.5/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.6.12/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.12.0/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.13/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import("app").catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>