IO

Converting Worksheet Tables to DataTables which bind to the Data Manager results in significant performance improvements when importing Excel workbooks.

It could convert all worksheet tables to data tables which bind to the data manager by turn on the convertSheetTableToDataTable of the GC.Spread.Sheets.ImportXlsxOptions, and export to Excel file with includeBindingSource of the GC.Spread.Sheets.ExportXlsxOptions turned on. It should be known that the column based formulas will be converted when import or export, the cell based formulas will be removed when import.
import { Component, NgModule, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { SpreadSheetsModule } from '@mescius/spread-sheets-angular'; import GC from '@mescius/spread-sheets'; import "@mescius/spread-sheets-io"; import './styles.css'; @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { spread: GC.Spread.Sheets.Workbook; hostStyle = { width: 'calc(100% - 280px)', height: '100%', overflow: 'hidden', float: 'left' }; constructor() { } async initSpread($event: any) { this.spread = $event.spread; let spread = this.spread; const loadingTip = addLoadingTip(); const tableImportExcel = document.getElementById('options-container') as any; await tableImportExcel.setSpread(spread, '$DEMOROOT$/'); loadingTip.remove(); } } @NgModule({ imports: [BrowserModule, SpreadSheetsModule], declarations: [AppComponent], exports: [AppComponent], bootstrap: [AppComponent] }) export class AppModule {} enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule);
<!doctype html> <html style="height:100%;font-size:14px;"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link rel="stylesheet" type="text/css" href="$DEMOROOT$/en/angular/node_modules/@mescius/spread-sheets/styles/gc.spread.sheets.excel2013white.css"> <!-- Polyfills --> <script src="$DEMOROOT$/en/angular/node_modules/core-js/client/shim.min.js"></script> <script src="$DEMOROOT$/en/angular/node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="$DEMOROOT$/en/angular/node_modules/systemjs/dist/system.js"></script> <script src="systemjs.config.js"></script> <script src="$DEMOROOT$/spread/source/data/table-dm/table-import-excel-component.js" type="text/javascript"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.import('@angular/compiler'); System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('$DEMOROOT$/en/lib/angular/license.ts'); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="sample-tutorial"> <gc-spread-sheets [hostStyle]="hostStyle" (workbookInitialized)="initSpread($event)"> </gc-spread-sheets> <sjs-demo-table-import-excel id="options-container" class="options-container"></sjs-demo-table-import-excel> </div>
.sample-tutorial { position: relative; height: 100%; overflow: hidden; } .sample-spreadsheets { width: calc(100% - 280px); height: 100%; overflow: hidden; float: left; } .options-container { float: right; width: 280px; padding: 12px; height: 100%; box-sizing: border-box; background: #fbfbfb; overflow: auto; } body { position: absolute; top: 0; bottom: 0; left: 0; right: 0; }
(function (global) { System.config({ transpiler: 'ts', typescriptOptions: { tsconfig: true }, meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'core-js': 'npm:core-js/client/shim.min.js', 'zone': 'npm:zone.js/fesm2015/zone.min.js', 'rxjs': 'npm:rxjs/dist/bundles/rxjs.umd.min.js', '@angular/core': 'npm:@angular/core/fesm2022', '@angular/common': 'npm:@angular/common/fesm2022/common.mjs', '@angular/compiler': 'npm:@angular/compiler/fesm2022/compiler.mjs', '@angular/platform-browser': 'npm:@angular/platform-browser/fesm2022/platform-browser.mjs', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/fesm2022/platform-browser-dynamic.mjs', '@angular/common/http': 'npm:@angular/common/fesm2022/http.mjs', '@angular/router': 'npm:@angular/router/fesm2022/router.mjs', '@angular/forms': 'npm:@angular/forms/fesm2022/forms.mjs', 'jszip': 'npm:jszip/dist/jszip.min.js', 'typescript': 'npm:typescript/lib/typescript.js', 'ts': './plugin.js', 'tslib': 'npm:tslib/tslib.js', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js', '@mescius/spread-sheets': 'npm:@mescius/spread-sheets/index.js', '@mescius/spread-sheets-io': 'npm:@mescius/spread-sheets-io/index.js', '@mescius/spread-sheets-angular': 'npm:@mescius/spread-sheets-angular/fesm2020/mescius-spread-sheets-angular.mjs', '@grapecity/jsob-test-dependency-package/react-components': 'npm:@grapecity/jsob-test-dependency-package/react-components/index.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'ts' }, rxjs: { defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, "node_modules/@angular": { defaultExtension: 'mjs' }, "@mescius/spread-sheets-angular": { defaultExtension: 'mjs' }, '@angular/core': { defaultExtension: 'mjs', main: 'core.mjs' } } }); })(this);