Demos
Grid(Angular)
Data-binding
Unbound Grid

Unbound (Angular)

All versions of the FlexGrid support an unbound mode, where you add rows and columns in code and the grid stores the data itself (there's no external data source). This sample shows how you can create and populate extra header rows, and how you can assign arbitrary (unbound) data to grid cells.

Learn about FlexGrid | FlexGrid API Reference

This example uses Angular.

JavaScript
Angular
Vue
React
app.component.ts
index.html
app.component.html
styles.css
Copy to CodeMine
import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
//
import '@angular/compiler';
import { Component, enableProdMode, ViewChild, ɵresolveComponentResources } from '@angular/core';

import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import * as wjcGrid from '@mescius/wijmo.grid';
import { WjGridModule } from '@mescius/wijmo.angular2.grid';
//
@Component({
  standalone: true,
  imports: [WjGridModule, BrowserModule],
  selector: 'app-component',
  templateUrl: 'src/app.component.html',
})
export class AppComponent {
  // references FlexGrid named 'flex' in the view
  @ViewChild('flex', { static: true }) flex: wjcGrid.FlexGrid;

  // DataSvc will be passed by derived classes
  constructor() {}

  ngAfterViewInit() {
    this._update();
  }

  private _update() {
    if (this.flex) {
      this.flex.allowResizing = wjcGrid.AllowResizing.Both;
      this.flex.allowDragging = wjcGrid.AllowDragging.Both;

      let r: number, c: number, i: number;
      // add 50 rows, 10 columns
      for (r = 0; r < 50; r++) {
        this.flex.rows.push(new wjcGrid.Row());
      }
      for (c = 0; c < 10; c++) {
        this.flex.columns.push(new wjcGrid.Column());
      }

      // populate the scrollable area
      for (r = 0; r < this.flex.rows.length; r++) {
        for (c = 0; c < this.flex.columns.length; c++) {
          this.flex.setCellData(r, c, 'r' + r + ',c' + c);
        }
      }

      // add 3 rows to the column header and 3 columns to the row header panels
      for (i = 0; i < 3; i++) {
        this.flex.columnHeaders.rows.insert(0, new wjcGrid.Row());
        this.flex.rowHeaders.columns.insert(0, new wjcGrid.Column());
      }

      // populate the fixed area
      let p = this.flex.columnHeaders;
      for (r = 0; r < p.rows.length; r++) {
        for (c = 0; c < p.columns.length; c++) {
          p.setCellData(r, c, 'cHdr r' + r + ',c' + c);
        }
      }
      p = this.flex.rowHeaders;
      for (r = 0; r < p.rows.length; r++) {
        for (c = 0; c < p.columns.length; c++) {
          p.setCellData(r, c, 'rHdr r' + r + ',c' + c);
        }
      }
      p = this.flex.topLeftCells;
      for (r = 0; r < p.rows.length; r++) {
        for (c = 0; c < p.columns.length; c++) {
          p.setCellData(r, c, 'tl r' + r + ',c' + c);
        }
      }
    }
  }
}
//

//
enableProdMode();

// Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings.
ɵresolveComponentResources(fetch).then(() => {
  // Bootstrap application
  bootstrapApplication(AppComponent).catch((err) => console.error(err));
});
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import '@angular/compiler'; import { Component, enableProdMode, ViewChild, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import * as wjcGrid from '@mescius/wijmo.grid'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; // @Component({ standalone: true, imports: [WjGridModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { // references FlexGrid named 'flex' in the view @ViewChild('flex', { static: true }) flex: wjcGrid.FlexGrid; // DataSvc will be passed by derived classes constructor() {} ngAfterViewInit() { this._update(); } private _update() { if (this.flex) { this.flex.allowResizing = wjcGrid.AllowResizing.Both; this.flex.allowDragging = wjcGrid.AllowDragging.Both; let r: number, c: number, i: number; // add 50 rows, 10 columns for (r = 0; r < 50; r++) { this.flex.rows.push(new wjcGrid.Row()); } for (c = 0; c < 10; c++) { this.flex.columns.push(new wjcGrid.Column()); } // populate the scrollable area for (r = 0; r < this.flex.rows.length; r++) { for (c = 0; c < this.flex.columns.length; c++) { this.flex.setCellData(r, c, 'r' + r + ',c' + c); } } // add 3 rows to the column header and 3 columns to the row header panels for (i = 0; i < 3; i++) { this.flex.columnHeaders.rows.insert(0, new wjcGrid.Row()); this.flex.rowHeaders.columns.insert(0, new wjcGrid.Column()); } // populate the fixed area let p = this.flex.columnHeaders; for (r = 0; r < p.rows.length; r++) { for (c = 0; c < p.columns.length; c++) { p.setCellData(r, c, 'cHdr r' + r + ',c' + c); } } p = this.flex.rowHeaders; for (r = 0; r < p.rows.length; r++) { for (c = 0; c < p.columns.length; c++) { p.setCellData(r, c, 'rHdr r' + r + ',c' + c); } } p = this.flex.topLeftCells; for (r = 0; r < p.rows.length; r++) { for (c = 0; c < p.columns.length; c++) { p.setCellData(r, c, 'tl r' + r + ',c' + c); } } } } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexGrid Unbound Grid</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/fesm2015/zone.min.js"></script> <!-- 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> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <wj-flex-grid #flex> </wj-flex-grid> </div>
.wj-flexgrid { height: 400px; margin: 6px 0; }
(function (global) { SystemJS.config({ transpiler: './plugin-typescript.js', typescriptOptions: { "target": "ES2022", "module": "system", "emitDecoratorMetadata": true, "experimentalDecorators": true, }, baseURL: 'node_modules/', meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'systemjs-plugin-css' }, '*.mjs': { format: 'esm' }, }, paths: { // paths serve as alias 'npm:': '' }, packageConfigPaths: [ '/node_modules/*/package.json', "/node_modules/@angular/*/package.json", "/node_modules/@mescius/*/package.json" ], map: { 'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js', 'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js', "rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js", 'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', '@mescius/wijmo.styles': 'npm:@mescius/wijmo.styles', '@mescius/wijmo.cultures': 'npm:@mescius/wijmo.cultures', '@mescius/wijmo.chart': 'npm:@mescius/wijmo.chart/index.js', '@mescius/wijmo.chart.analytics': 'npm:@mescius/wijmo.chart.analytics/index.js', '@mescius/wijmo.chart.animation': 'npm:@mescius/wijmo.chart.animation/index.js', '@mescius/wijmo.chart.annotation': 'npm:@mescius/wijmo.chart.annotation/index.js', '@mescius/wijmo.chart.finance': 'npm:@mescius/wijmo.chart.finance/index.js', '@mescius/wijmo.chart.finance.analytics': 'npm:@mescius/wijmo.chart.finance.analytics/index.js', '@mescius/wijmo.chart.hierarchical': 'npm:@mescius/wijmo.chart.hierarchical/index.js', '@mescius/wijmo.chart.interaction': 'npm:@mescius/wijmo.chart.interaction/index.js', '@mescius/wijmo.chart.radar': 'npm:@mescius/wijmo.chart.radar/index.js', '@mescius/wijmo.chart.render': 'npm:@mescius/wijmo.chart.render/index.js', '@mescius/wijmo.chart.webgl': 'npm:@mescius/wijmo.chart.webgl/index.js', '@mescius/wijmo.chart.map': 'npm:@mescius/wijmo.chart.map/index.js', '@mescius/wijmo.gauge': 'npm:@mescius/wijmo.gauge/index.js', '@mescius/wijmo.grid': 'npm:@mescius/wijmo.grid/index.js', '@mescius/wijmo.grid.detail': 'npm:@mescius/wijmo.grid.detail/index.js', '@mescius/wijmo.grid.filter': 'npm:@mescius/wijmo.grid.filter/index.js', '@mescius/wijmo.grid.search': 'npm:@mescius/wijmo.grid.search/index.js', '@mescius/wijmo.grid.style': 'npm:@mescius/wijmo.grid.style/index.js', '@mescius/wijmo.grid.grouppanel': 'npm:@mescius/wijmo.grid.grouppanel/index.js', '@mescius/wijmo.grid.multirow': 'npm:@mescius/wijmo.grid.multirow/index.js', '@mescius/wijmo.grid.transposed': 'npm:@mescius/wijmo.grid.transposed/index.js', '@mescius/wijmo.grid.transposedmultirow': 'npm:@mescius/wijmo.grid.transposedmultirow/index.js', '@mescius/wijmo.grid.pdf': 'npm:@mescius/wijmo.grid.pdf/index.js', '@mescius/wijmo.grid.sheet': 'npm:@mescius/wijmo.grid.sheet/index.js', '@mescius/wijmo.grid.xlsx': 'npm:@mescius/wijmo.grid.xlsx/index.js', '@mescius/wijmo.grid.selector': 'npm:@mescius/wijmo.grid.selector/index.js', '@mescius/wijmo.grid.cellmaker': 'npm:@mescius/wijmo.grid.cellmaker/index.js', '@mescius/wijmo.nav': 'npm:@mescius/wijmo.nav/index.js', '@mescius/wijmo.odata': 'npm:@mescius/wijmo.odata/index.js', '@mescius/wijmo.olap': 'npm:@mescius/wijmo.olap/index.js', '@mescius/wijmo.rest': 'npm:@mescius/wijmo.rest/index.js', '@mescius/wijmo.pdf': 'npm:@mescius/wijmo.pdf/index.js', '@mescius/wijmo.pdf.security': 'npm:@mescius/wijmo.pdf.security/index.js', '@mescius/wijmo.viewer': 'npm:@mescius/wijmo.viewer/index.js', '@mescius/wijmo.xlsx': 'npm:@mescius/wijmo.xlsx/index.js', '@mescius/wijmo.undo': 'npm:@mescius/wijmo.undo/index.js', '@mescius/wijmo.interop.grid': 'npm:@mescius/wijmo.interop.grid/index.js', '@mescius/wijmo.touch': 'npm:@mescius/wijmo.touch/index.js', '@mescius/wijmo.cloud': 'npm:@mescius/wijmo.cloud/index.js', '@mescius/wijmo.barcode': 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"npm:@mescius/wijmo.angular2.chart.interaction/index.js", "@mescius/wijmo.angular2.chart.radar": "npm:@mescius/wijmo.angular2.chart.radar/index.js", '@mescius/wijmo.angular2.chart.map': 'npm:@mescius/wijmo.angular2.chart.map/index.js', "@mescius/wijmo.angular2.chart": "npm:@mescius/wijmo.angular2.chart/index.js", "@mescius/wijmo.angular2.core": "npm:@mescius/wijmo.angular2.core/index.js", "@mescius/wijmo.angular2.gauge": "npm:@mescius/wijmo.angular2.gauge/index.js", "@mescius/wijmo.angular2.grid.detail": "npm:@mescius/wijmo.angular2.grid.detail/index.js", "@mescius/wijmo.angular2.grid.filter": "npm:@mescius/wijmo.angular2.grid.filter/index.js", "@mescius/wijmo.angular2.grid.grouppanel": "npm:@mescius/wijmo.angular2.grid.grouppanel/index.js", "@mescius/wijmo.angular2.grid.search": "npm:@mescius/wijmo.angular2.grid.search/index.js", "@mescius/wijmo.angular2.grid.multirow": "npm:@mescius/wijmo.angular2.grid.multirow/index.js", "@mescius/wijmo.angular2.grid.sheet": "npm:@mescius/wijmo.angular2.grid.sheet/index.js", '@mescius/wijmo.angular2.grid.transposed': 'npm:@mescius/wijmo.angular2.grid.transposed/index.js', '@mescius/wijmo.angular2.grid.transposedmultirow': 'npm:@mescius/wijmo.angular2.grid.transposedmultirow/index.js', "@mescius/wijmo.angular2.grid": "npm:@mescius/wijmo.angular2.grid/index.js", "@mescius/wijmo.angular2.input": "npm:@mescius/wijmo.angular2.input/index.js", "@mescius/wijmo.angular2.olap": "npm:@mescius/wijmo.angular2.olap/index.js", "@mescius/wijmo.angular2.viewer": "npm:@mescius/wijmo.angular2.viewer/index.js", "@mescius/wijmo.angular2.nav": "npm:@mescius/wijmo.angular2.nav/index.js", "@mescius/wijmo.angular2.directivebase": "npm:@mescius/wijmo.angular2.directivebase/index.js", '@mescius/wijmo.angular2.barcode.common': 'npm:@mescius/wijmo.angular2.barcode.common/index.js', '@mescius/wijmo.angular2.barcode.composite': 'npm:@mescius/wijmo.angular2.barcode.composite/index.js', '@mescius/wijmo.angular2.barcode.specialized': 'npm:@mescius/wijmo.angular2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js', '@angular/core': 'npm:@angular/core/fesm2022/core.mjs', '@angular/core/primitives/signals': 'npm:@angular/core/fesm2022/primitives/signals.mjs', '@angular/core/primitives/event-dispatch': 'npm:@angular/core/fesm2022/primitives/event-dispatch.mjs', '@angular/common': 'npm:@angular/common/fesm2022/common.mjs', '@angular/common/http': 'npm:@angular/common/fesm2022/http.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/http': 'npm:@angular/http/fesm2022/http.mjs', '@angular/router': 'npm:@angular/router/fesm2022/router.mjs', '@angular/forms': 'npm:@angular/forms/fesm2022/forms.mjs', }, // packages tells the System loader how to load when no filename and/or no extension packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);