FlexGrid Import Export Excel Asynchronous (React)

The sample demonstrates how to export or import FlexGrid content to/from an Excel(.xlsx) file asynchronously with the saveAsync/loadAsync methods of the FlexGridXlsxConverter class.

This example uses React.

import "@grapecity/wijmo.styles/wijmo.css"; import "bootstrap.css"; import "./app.css"; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; // import * as wjcCore from "@grapecity/wijmo"; import * as wjcGrid from "@grapecity/wijmo.react.grid"; import * as wjGrid from "@grapecity/wijmo.grid"; import * as wjcXlsx from "@grapecity/wijmo.xlsx"; import * as wjcGridXlsx from "@grapecity/wijmo.grid.xlsx"; import { getProductOrders } from "./data"; class App extends React.Component { constructor(props) { super(props); this.state = { data: getProductOrders(500), fileName: "", includeColumnHeader: true, customContent: false }; } render() { return <div className="container-fluid"> <div className="row"> <wjcGrid.FlexGrid itemsSource={this.state.data} initialized={this.initializeFlexSheet.bind(this)}> <wjcGrid.FlexGridColumn header="ID" binding="id"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Start Date" binding="start" format="d"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="End Date" binding="end" format="d"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Country" binding="country"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Product" binding="product"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Color" binding="color" width={70}></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Amount" binding="amount" format="c" aggregate="Sum"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Pending" binding="amount2" format="c2" aggregate="Sum"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Discount" binding="discount" format="p1" aggregate="Avg"></wjcGrid.FlexGridColumn> <wjcGrid.FlexGridColumn header="Active" binding="active" width={70}></wjcGrid.FlexGridColumn> </wjcGrid.FlexGrid> </div> <div className="row"> <div className="col-md-6 col-xs-12"> <div className="form-inline well well-lg"> <input type="file" className="form-control" style={{ width: '250px' }} id="importFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel.sheet.macroEnabled.12"/> <button onClick={this.load.bind(this)} className="btn btn-default">Import</button> <div className="checkbox"> <label> <input defaultChecked type="checkbox"/> Include Column Header </label> </div> </div> </div> <div className="col-md-6 col-xs-12"> <div className="form-inline well well-lg"> <button onClick={this.save.bind(this)} className="btn btn-default">Export</button> <div className="checkbox"> <label> <input defaultChecked type="checkbox"/> Include Column Header </label> </div> <div className="checkbox"> <label> <input v-model="customContent" type="checkbox"/> Custom Cell Content </label> </div> </div> </div> </div> </div>; } initializeFlexSheet(flex) { this.flex = flex; let groupNames = ["Product", "Country", "Amount"], cv, propName, groupDesc; // get the collection view, start update cv = flex.collectionView; cv.beginUpdate(); // clear existing groups cv.groupDescriptions.clear(); // add new groups for (let i = 0; i < groupNames.length; i++) { propName = groupNames[i].toLowerCase(); if (propName == "amount") { // group amounts in ranges // (could use the mapping function to group countries into continents, // names into initials, etc) groupDesc = new wjcCore.PropertyGroupDescription(propName, (item, prop) => { let value = item[prop]; if (value > 1000) return "Large Amounts"; if (value > 100) return "Medium Amounts"; if (value > 0) return "Small Amounts"; return "Negative"; }); cv.groupDescriptions.push(groupDesc); } else if (propName) { // group other properties by their specific values groupDesc = new wjcCore.PropertyGroupDescription(propName); cv.groupDescriptions.push(groupDesc); } } // done updating cv.endUpdate(); } save() { wjcGridXlsx.FlexGridXlsxConverter.saveAsync(this.flex, { includeColumnHeaders: this.state.includeColumnHeader, includeCellStyles: false, formatItem: this.state.customContent ? this.state._exportFormatItem : null }, "FlexGrid.xlsx"); } load() { let fileInput = document.getElementById("importFile"); if (fileInput.files[0]) { this.setState({ customContent: false }); wjcGridXlsx.FlexGridXlsxConverter.loadAsync(this.flex, fileInput.files[0], { includeColumnHeaders: this.state.includeColumnHeader }); } } exportFormatItem(args) { var p = args.panel, row = args.row, col = args.col, xlsxCell = args.xlsxCell, cell, color; if (p.cellType === wjGrid.CellType.Cell) { if (p.columns[col].binding === "color") { //color = p.rows[row].dataItem['color']; if (xlsxCell.value) { if (!xlsxCell.style.font) { xlsxCell.style.font = {}; } xlsxCell.style.font.color = xlsxCell.value.toLowerCase(); } } else if (p.columns[col].binding === "active" && p.rows[row] instanceof wjGrid.GroupRow) { cell = args.getFormattedCell(); xlsxCell.value = cell.textContent.trim(); xlsxCell.style.hAlign = wjcXlsx.HAlign.Left; } } } } ReactDOM.render(<App />, document.getElementById('app'));
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexGrid Import Export Excel Asynchronous</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.wj-flexgrid { height: 400px; margin: 6px 0; }
export function getProductOrders(count) { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], products = ['Widget', 'Gadget', 'Doohickey'], colors = ['Black', 'White', 'Red', 'Green', 'Blue'], data = [], dt = new Date(); // add count items for (let i = 0; i < count; i++) { // constants used to create data items let date = new Date(dt.getFullYear(), i % 12, 25), countryId = Math.floor(Math.random() * countries.length), productId = Math.floor(Math.random() * products.length), colorId = Math.floor(Math.random() * colors.length); // create the item let item = { id: i, start: date, end: date, country: countries[countryId], product: products[productId], color: colors[colorId], amount: Math.random() * 10000, amount2: Math.random() * 10000, discount: Math.random() / 4, active: i % 4 == 0, }; // add the item to the list data.push(item); } return data; }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 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packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);