FlexGrid Import Export Excel Asynchronous (Vue)

The FlexGrid control allows users to import and export content to/from an Excel (.xlsx) file asynchronously. This sample demonstrates how to do so using the saveAsync/loadAsync methods of the FlexGridXlsxConverter class.

Learn about FlexGrid | FlexGrid API Reference

This example uses Vue.

<template> <div class="container-fluid"> <div class="row"> <!-- the grid --> <wj-flex-grid :itemsSource="data" :initialized="initializeFlexSheet" :formatItem="formatItem"> <wj-flex-grid-column header="ID" binding="id"></wj-flex-grid-column> <wj-flex-grid-column header="Start Date" binding="start" format="d"></wj-flex-grid-column> <wj-flex-grid-column header="End Date" binding="end" format="d"></wj-flex-grid-column> <wj-flex-grid-column header="Country" binding="country"></wj-flex-grid-column> <wj-flex-grid-column header="Product" binding="product"></wj-flex-grid-column> <wj-flex-grid-column header="Color" binding="color" :width="70"></wj-flex-grid-column> <wj-flex-grid-column header="Amount" binding="amount" format="c" aggregate="Sum"></wj-flex-grid-column> <wj-flex-grid-column header="Pending" binding="amount2" format="c2" aggregate="Sum"></wj-flex-grid-column> <wj-flex-grid-column header="Discount" binding="discount" format="p1" aggregate="Avg"></wj-flex-grid-column> <wj-flex-grid-column header="Active" binding="active" :width="170"></wj-flex-grid-column> </wj-flex-grid> </div> <div class="row"> <div class="col-md-6 col-xs-12"> <div class="form-inline well well-lg"> <input type="file" class="form-control" style="width: 250px;" id="importFile" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel.sheet.macroEnabled.12"> <button @click="load()" class="btn btn-default">Import</button> <div class="checkbox"> <label> <input v-model="includeColumnHeader" type="checkbox"> Include Column Header </label> </div> </div> </div> <div class="col-md-6 col-xs-12"> <div class="form-inline well well-lg"> <button @click="save()" class="btn btn-default">Export</button> <div class="checkbox"> <label> <input v-model="includeColumnHeader" type="checkbox"> Include Column Header </label> </div> <div class="checkbox"> <label> <input v-model="customContent" @click="customContentClick($event)" type="checkbox"> Custom Cell Content </label> </div> </div> </div> </div> </div> </template> <script> import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import { createApp } from "vue" import { getProductOrders } from './data'; import { registerGrid } from '@mescius/wijmo.vue2.grid'; import * as wjcCore from '@mescius/wijmo'; import * as wjcGrid from '@mescius/wijmo.grid'; import * as wjcXlsx from '@mescius/wijmo.xlsx'; import * as wjcGridXlsx from '@mescius/wijmo.grid.xlsx'; import * as gridPdf from '@mescius/wijmo.grid.pdf'; let App = { name: "App", data: function () { return { data: getProductOrders(500), includeColumnHeader: false, customContent: false } }, methods: { initializeFlexSheet: function (flex) { this.flex = flex; let groupNames = ['Product', 'Country', 'Amount'], cv = flex.collectionView; // start update cv.beginUpdate(); // clear existing groups cv.groupDescriptions.clear(); // add new groups for (let i = 0; i < groupNames.length; i++) { let 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) let 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 let groupDesc = new wjcCore.PropertyGroupDescription(propName); cv.groupDescriptions.push(groupDesc); } } // done updating cv.endUpdate(); }, save() { wjcGridXlsx.FlexGridXlsxConverter.saveAsync( this.flex, { includeColumnHeaders: this.includeColumnHeader, includeStyles: false, formatItem: this.customContent ? this.exportFormatItem : null }, 'FlexGrid.xlsx' ); }, load: function () { let fileInput = document.getElementById('importFile'); if (fileInput.files[0]) { this.customContent = false; wjcGridXlsx.FlexGridXlsxConverter.loadAsync( this.flex, fileInput.files[0], { includeColumnHeaders: this.includeColumnHeader } ); } }, customContentClick: function (e) { this.flex.invalidate(); }, formatItem: function (grid, e) { let panel = e.panel, r = e.row, c = e.col, cell = e.cell; if (panel.cellType === wjcGrid.CellType.Cell) { let binding = grid.columns[c].binding, row = grid.rows[r]; if (row instanceof wjcGrid.GroupRow) { if (row.level <= 2) { if (binding === 'active') { cell.innerHTML = this.customContent ? 'Amount/Pending: ' + Math.round(grid.getCellData(r, 'amount', false) / grid.getCellData(r, 'amount2', false) * 100) / 100 : ''; } } } else { if (binding === 'color') { cell.style.color = this.customContent ? grid.getCellData(r, c, true) : ''; } } } }, exportFormatItem: function (args) { var p = args.panel, row = args.row, col = args.col, xlsxCell = args.xlsxCell; if (p.cellType === wjcGrid.CellType.Cell) { if (p.columns[col].binding === '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 wjcGrid.GroupRow) { let cell = args.getFormattedCell(); xlsxCell.value = cell.textContent.trim(); xlsxCell.style.hAlign = wjcXlsx.HAlign.Left; } } } } }; const app = createApp(App); // register all components and directives from Wijmo modules registerGrid(app) app.mount('#app'); </script> <style> .wj-flexgrid { height: 400px; margin: 6px 0; } .checkbox label input[type=checkbox] { margin-right: 5px; } .checkbox label { margin-right: 10px; } .btn { margin-right: 5px; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Using a custom font</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.vue'); </script> </head> <body> <div id="app"> </div> </body> </html>
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; }
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