Header and Footer

import React from 'react'; import DataGrid, { Column, Export } from 'devextreme-react/data-grid'; 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 { countries } from './data.js'; const gdpFormat = { type: 'percent', precision: 1, }; class App extends React.Component { constructor(props) { super(props); this.onExporting = this.onExporting.bind(this); } render() { return ( <DataGrid dataSource={countries} keyExpr="ID" showBorders={true} onExporting={this.onExporting} > <Export enabled={true} /> <Column dataField="Country" /> <Column dataField="Area" /> <Column caption="Population"> <Column dataField="Population_Total" caption="Total" format="fixedPoint" /> <Column dataField="Population_Urban" caption="Urban" format="percent" /> </Column> <Column caption="Nominal GDP"> <Column dataField="GDP_Total" caption="Total, mln $" format="fixedPoint" sortOrder="desc" /> <Column caption="By Sector"> <Column dataField="GDP_Agriculture" caption="Agriculture" format={gdpFormat} width={95} /> <Column dataField="GDP_Industry" caption="Industry" format={gdpFormat} width={80} /> <Column dataField="GDP_Services" caption="Services" format={gdpFormat} width={85} /> </Column> </Column> </DataGrid> ); } 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'); }); }); e.cancel = true; } } export default App;