Aggregates (Angular)

The MultiRow control supports CollectionView-based grouping just like FlexGrid.

When showing grouped data, the control adds group header rows that can be used to collapse and expand the groups and also to display aggregate statistics for the groups.

To ensure aggregates are visible on the group header rows, set the multiRowGroupHeaders property to true.

Learn about MultiRow | MultiRow API Reference

This example uses Angular.

app.component.ts
index.html
app.component.html
app.data.ts
styles.css
Copy to CodeMine
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import { GroupRow } from '@mescius/wijmo.grid'; // import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridMultirowModule } from '@mescius/wijmo.angular2.grid.multirow'; import { getGroupedData, getLayoutDefinition } from './app.data'; @Component({ standalone: true, imports: [WjGridMultirowModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { data = getGroupedData(200); layout = getLayoutDefinition(); multiRowGroupHeaders = true; // start collapsed initialized(sender: any) { sender.collapseGroupsToLevel(1); // Push aggregate rows as per Multirow's layout definition sender.columnFooters.rows.push(new GroupRow()); sender.columnFooters.rows.push(new GroupRow()); sender.bottomLeftCells.setCellData(1, 0, 'Σ'); } // toggle multiRowGroupHeaders cbChecked(e: MouseEvent) { this.multiRowGroupHeaders = (e.target as HTMLInputElement).checked; } } 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 { GroupRow } from '@mescius/wijmo.grid'; // import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridMultirowModule } from '@mescius/wijmo.angular2.grid.multirow'; import { getGroupedData, getLayoutDefinition } from './app.data'; @Component({ standalone: true, imports: [WjGridMultirowModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { data = getGroupedData(200); layout = getLayoutDefinition(); multiRowGroupHeaders = true; // start collapsed initialized(sender: any) { sender.collapseGroupsToLevel(1); // Push aggregate rows as per Multirow's layout definition sender.columnFooters.rows.push(new GroupRow()); sender.columnFooters.rows.push(new GroupRow()); sender.bottomLeftCells.setCellData(1, 0, 'Σ'); } // toggle multiRowGroupHeaders cbChecked(e: MouseEvent) { this.multiRowGroupHeaders = (e.target as HTMLInputElement).checked; } } 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 MultiRow Aggregates</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"> <label> multiRowGroupHeaders: <input type="checkbox" checked (click)="cbChecked($event)"> </label> <wj-multi-row #multiRow [itemsSource]="data" [layoutDefinition]="layout" [multiRowGroupHeaders]="multiRowGroupHeaders" (initialized)="initialized(multiRow)"> </wj-multi-row> </div>
import { CollectionView, DateTime } from '@mescius/wijmo'; // raw data export function getData(cnt = 20) { let countries = 'US,Germany,UK,Japan,Italy,Greece,Portugal,Spain'.split(','), names = 'Abe,Bob,Chuck,Dan,Ed,Fred'.split(','), colors = 'Red,Green,Blue,White,Black,Yellow,Orange'.split(','), today = new Date(), data = []; for (let i = 0; i < cnt; i++) { data.push({ id: i, date: DateTime.addDays(today, -i), name: names[i % names.length], country: countries[i % countries.length], color: colors[i % colors.length], active: i % 5 != 0, downloads: Math.round(Math.random() * 200000), sales: Math.round(Math.random() * 20000), expenses: Math.round(Math.random() * 10000) }); } return data; } // grouped data export function getGroupedData(cnt = 20) { return new CollectionView(getData(cnt), { groupDescriptions: ['country', 'color'] }); } // MultiRow layout definition export function getLayoutDefinition() { return [ { cells: [{ binding: 'id', header: 'ID' }] }, { cells: [{ binding: 'country', header: 'Country' }] }, { cells: [{ binding: 'color', header: 'Color' }] }, { cells: [ { binding: 'sales', header: 'Sales', cssClass: 'sales', aggregate: 'Sum' }, { binding: 'expenses', header: 'Expenses', cssClass: 'expenses', aggregate: 'Sum' } ] } ]; }
.wj-multirow { height: 400px; margin: 6px 0; } .wj-cell.sales { color: darkgreen; font-weight: bold; font-style: italic; } .wj-cell.expenses { color: darkred; font-weight: bold; font-style: italic; }
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'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);