Progress Indicator (PDF) (Vue)

The sample demonstrates how to export FlexGrid content to PDF files asynchronously, display a progress indicator and cancel the export.

The progress argument of the PdfWebWorkerClient's exportGrid method is used to track the export progress, the web worker's terminate method is used to cancel the export.

Learn about FlexGrid | FlexGrid API Reference

This example uses Vue.

<template> <main class="container-fluid"> <wj-flex-grid class="grid" :autoGenerateColumns=false :itemsSource="data" :initialized="gridInitialized"> <wj-flex-grid-column header="ID" binding="id"></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="Amount" binding="amount" format="c"></wj-flex-grid-column> <wj-flex-grid-column header="Pending" binding="amount2" format="c2"></wj-flex-grid-column> <wj-flex-grid-column header="Discount" binding="discount" format="p1"></wj-flex-grid-column> <wj-flex-grid-column header="Active" binding="active"></wj-flex-grid-column> </wj-flex-grid> <div class="row "> <div class="col-md-6 col-xs-12 well well-sm"> <wj-linear-gauge :isReadOnly=true :min=0 :max=100 :value=0 :showText="'Value'" :initialized="progressBarInitialized"> </wj-linear-gauge> <button class="btn btn-default" @click="exportPdf()">Export</button> <button class="btn btn-default" @click="cancel()">Cancel</button> </div> </div> </main> </template> <script setup> import * as pdf from "@mescius/wijmo.pdf"; import * as gridPdf from "@mescius/wijmo.grid.pdf"; import { getData } from "./data"; import { ref } from "vue"; const data = ref(getData(3000)); const worker = ref(null); const flexGrid = ref(null); const progressBar = ref(null); function gridInitialized(ctl) { flexGrid.value = ctl; } function progressBarInitialized(ctl) { progressBar.value = ctl; } function exportPdf() { cancel(); // worker.value = loadWorker("./export-grid.js", () => { gridPdf.PdfWebWorkerClient.exportGrid( worker.value, flexGrid.value, "FlexGrid.pdf", { scaleMode: gridPdf.ScaleMode.PageWidth, styles: { cellStyle: { backgroundColor: "#ffffff", borderColor: "#c6c6c6", }, altCellStyle: { backgroundColor: "#f9f9f9", }, groupCellStyle: { backgroundColor: "#dddddd", }, headerCellStyle: { backgroundColor: "#eaeaea", }, }, }, null, (progress) => (progressBar.value.value = progress * 100), ); }); } function cancel() { if (worker.value) { worker.value.terminate(); } progressBar.value.value = 0; } // // Creates web worker that executes the module from the specified URL. function loadWorker(url, ready) { let worker = new Worker("src/workers/worker-loader.js"); // worker.addEventListener("message", (e) => { if (e.data === "#ready#") { ready(); } }); // worker.postMessage({ url: url }); // return worker; } </script> <style> .wj-flexgrid { height: 400px; margin: 6px 0; } .wj-gauge { margin: 20px auto; } </style>
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>Progress Indicator</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="compiler.js" type="module"></script> <script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.5/dist/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app.js'); </script> </head> <body> <div id="app"> </div> </body> </html>
export function getData(count) { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], products = ['Widget', 'Gadget', 'Doohickey'], data = []; // for (let i = 0; i < count; i++) { let countryId = Math.floor(Math.random() * countries.length), productId = Math.floor(Math.random() * products.length); // let item = { id: i, country: countries[countryId], product: products[productId], amount: Math.random() * 10000, amount2: Math.random() * 10000, discount: Math.random() / 4, active: i % 4 == 0 }; // data.push(item); } // return data; }
import { PdfWebWorker } from '@mescius/wijmo.grid.pdf'; // PdfWebWorker.initExportGrid();
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, }, meta: { '*.css': { loader: 'css' }, '*.vue': { loader: '../plugin-vue/index.js' }, //'*.vue': { loader: 'systemjs-plugin-vue' } }, paths: { // paths serve as alias 'npm:': 'node_modules/', 'cdn:': 'https://cdn.mescius.io/demoapps/packages/wijmojs/5.20261.50-rc/', 'pcdn:': 'https://cdn.jsdelivr.net/npm/' }, // map tells the System loader where to look for things map: { '@mescius/wijmo': 'cdn:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'cdn:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'cdn:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'cdn:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'cdn:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'cdn:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'cdn:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'cdn:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'cdn:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'cdn:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'cdn:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'cdn:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'cdn:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'cdn:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'cdn:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'cdn:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'cdn:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'cdn:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'cdn:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'cdn:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'cdn:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'cdn:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'cdn:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'cdn:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'cdn:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'cdn:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'cdn:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'cdn:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'cdn:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'cdn:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'cdn:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'cdn:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'cdn:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'cdn:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'cdn:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'cdn:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'cdn:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'cdn:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'cdn:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'cdn:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'cdn:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'cdn:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'cdn:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 'cdn:@mescius/wijmo.barcode/index.js', '@mescius/wijmo.barcode.common': 'cdn:@mescius/wijmo.barcode.common/index.js', '@mescius/wijmo.barcode.composite': 'cdn:@mescius/wijmo.barcode.composite/index.js', '@mescius/wijmo.barcode.specialized': 'cdn:@mescius/wijmo.barcode.specialized/index.js', '@mescius/wijmo.vue2.chart.analytics': 'cdn:@mescius/wijmo.vue2.chart.analytics/index.js', '@mescius/wijmo.vue2.chart.animation': 'cdn:@mescius/wijmo.vue2.chart.animation/index.js', '@mescius/wijmo.vue2.chart.annotation': 'cdn:@mescius/wijmo.vue2.chart.annotation/index.js', '@mescius/wijmo.vue2.chart.finance.analytics': 'cdn:@mescius/wijmo.vue2.chart.finance.analytics/index.js', '@mescius/wijmo.vue2.chart.finance': 'cdn:@mescius/wijmo.vue2.chart.finance/index.js', '@mescius/wijmo.vue2.chart.hierarchical': 'cdn:@mescius/wijmo.vue2.chart.hierarchical/index.js', '@mescius/wijmo.vue2.chart.interaction': 'cdn:@mescius/wijmo.vue2.chart.interaction/index.js', '@mescius/wijmo.vue2.chart.radar': 'cdn:@mescius/wijmo.vue2.chart.radar/index.js', '@mescius/wijmo.vue2.chart.map': 'cdn:@mescius/wijmo.vue2.chart.map/index.js', '@mescius/wijmo.vue2.chart': 'cdn:@mescius/wijmo.vue2.chart/index.js', '@mescius/wijmo.vue2.core': 'cdn:@mescius/wijmo.vue2.core/index.js', '@mescius/wijmo.vue2.gauge': 'cdn:@mescius/wijmo.vue2.gauge/index.js', '@mescius/wijmo.vue2.grid.detail': 'cdn:@mescius/wijmo.vue2.grid.detail/index.js', '@mescius/wijmo.vue2.grid.filter': 'cdn:@mescius/wijmo.vue2.grid.filter/index.js', '@mescius/wijmo.vue2.grid.grouppanel': 'cdn:@mescius/wijmo.vue2.grid.grouppanel/index.js', '@mescius/wijmo.vue2.grid.search': 'cdn:@mescius/wijmo.vue2.grid.search/index.js', '@mescius/wijmo.vue2.grid.multirow': 'cdn:@mescius/wijmo.vue2.grid.multirow/index.js', '@mescius/wijmo.vue2.grid.sheet': 'cdn:@mescius/wijmo.vue2.grid.sheet/index.js', '@mescius/wijmo.vue2.grid.transposed': 'cdn:@mescius/wijmo.vue2.grid.transposed/index.js', '@mescius/wijmo.vue2.grid.transposedmultirow': 'cdn:@mescius/wijmo.vue2.grid.transposedmultirow/index.js', '@mescius/wijmo.vue2.grid': 'cdn:@mescius/wijmo.vue2.grid/index.js', '@mescius/wijmo.vue2.input': 'cdn:@mescius/wijmo.vue2.input/index.js', '@mescius/wijmo.vue2.olap': 'cdn:@mescius/wijmo.vue2.olap/index.js', '@mescius/wijmo.vue2.viewer': 'cdn:@mescius/wijmo.vue2.viewer/index.js', '@mescius/wijmo.vue2.nav': 'cdn:@mescius/wijmo.vue2.nav/index.js', '@mescius/wijmo.vue2.base': 'cdn:@mescius/wijmo.vue2.base/index.js', '@mescius/wijmo.vue2.barcode.common': 'cdn:@mescius/wijmo.vue2.barcode.common/index.js', '@mescius/wijmo.vue2.barcode.composite': 'cdn:@mescius/wijmo.vue2.barcode.composite/index.js', '@mescius/wijmo.vue2.barcode.specialized': 'cdn:@mescius/wijmo.vue2.barcode.specialized/index.js', 'bootstrap.css': 'pcdn:bootstrap@3.3.7/dist/css/bootstrap.min.css', jszip: 'pcdn:jszip@3.8.0/dist/jszip.js', css: 'pcdn:systemjs-plugin-css@0.1.37/css.js', vue: 'pcdn:vue@3.4.21/dist/vue.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', '@vue/compiler-dom': 'pcdn:@vue/compiler-dom@3.4.21/dist/compiler-dom.global.prod.js', '@vue/runtime-dom': 'pcdn:@vue/runtime-dom@3.4.21/dist/runtime-dom.global.prod.js', '@vue/shared': 'pcdn:@vue/shared@3.4.21/dist/shared.cjs.js', 'vue-loader': 'pcdn:systemjs-vue-browser@1.0.11/index.js', //'systemjs-plugin-vue': 'pcdn:systemjs-plugin-vue@1.2.0/index.js', 'plugin-babel': 'pcdn:systemjs-plugin-babel@0.0.25/plugin-babel.js', 'systemjs-babel-build': 'pcdn:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js', }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'js', }, rxjs: { defaultExtension: 'js', }, node_modules: { defaultExtension: 'js', }, wijmo: { defaultExtension: 'js', }, }, }); })(this);