Expand and Collapse Rows/Columns | OLAP

import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
import '@mescius/wijmo.touch'; // support drag/drop on touch devices
import * as wjOlap from '@mescius/wijmo.olap';
//
import '@angular/compiler';
import { Component, Inject, enableProdMode, ViewChild, ɵresolveComponentResources } from '@angular/core';
import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import { WjOlapModule } from '@mescius/wijmo.angular2.olap';
import { DataService } from './app.data';
//
@Component({
standalone: true,
providers: [DataService],
imports: [WjOlapModule, BrowserModule],
selector: 'app-component',
templateUrl: 'src/app.component.html',
})
export class AppComponent {
@ViewChild('grid', { static: true }) pivotGrid: wjOlap.PivotGrid;
ng: wjOlap.PivotEngine;
//
constructor(@Inject(DataService) private dataService: DataService) {
this.ng = new wjOlap.PivotEngine({
itemsSource: dataService.getData(1000), // raw data
valueFields: ['Amount'], // summarize amounts
rowFields: ['Buyer', 'Type'], // by buyer and Type
showRowTotals: 'Subtotals',
showColumnTotals: 'Subtotals',
});
this.ng.fields.getField('Amount').format = 'c0';
this.ng.fields.getField('Date').format = 'yyyy';
}
//
onTotalsBeforeDataClick(e: MouseEvent) {
this.pivotGrid.engine.totalsBeforeData = (e.target as HTMLInputElement).checked;
}
//
onCollapsibleSubtotalsClick(e: MouseEvent) {
this.pivotGrid.collapsibleSubtotals = (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 OLAP Pivot Grid Row Column Expand Collapse</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">
<div class="row">
<div class="col-sm-5">
<wj-pivot-panel [itemsSource]="ng"></wj-pivot-panel>
</div>
<div class="col-sm-7">
<wj-pivot-grid #grid [itemsSource]="ng"></wj-pivot-grid>
</div>
</div>
<p>
You can configure the <b>PivotEngine</b> to show the subtotals
before or after the data using the <b>totalsBeforeData</b>
property:
</p>
<label>
totalsBeforeData:
<input id="totalsBeforeData" type="checkbox" (click)="onTotalsBeforeDataClick($event)">
</label>
<p>
You can configure the <b>PivotGrid</b> to make row and column
groups collapsible using the <b>collapsibleSubtotals</b>
property:
</p>
<label>
collapsibleSubtotals:
<input id="collapsibleSubtotals" type="checkbox" checked (click)="onCollapsibleSubtotalsClick($event)">
</label>
</div>

import { Injectable } from '@angular/core';
import * as wjCore from '@mescius/wijmo';
export interface DataItem {
date: Date;
buyer: string;
type: string;
amount: number;
}
function randomItem(arr: string[]): string {
return arr[Math.floor(Math.random() * arr.length)];
}
@Injectable()
export class DataService {
getData(cnt: number): DataItem[] {
var today = new Date(),
buyers = 'Mom,Dad,Kelly,Sheldon'.split(','),
types = 'Food,Clothes,Fuel,Books,Sports,Music'.split(','),
data = [];
for (var i = 0; i < cnt; i++) {
data.push({
date: wjCore.DateTime.addDays(today, -Math.random() * 365 * 3),
buyer: randomItem(buyers),
type: randomItem(types),
amount: 20 + Math.random() * 1000
});
}
return data;
}
}

.wj-pivotgrid {
max-height: 400px;
box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
}
.container>label {
margin: 0 0 2em 2em;
}
body {
margin-bottom: 24pt;
}

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format: 'esm'
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paths: {
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},
packageConfigPaths: [
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map: {
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'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js',
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// packages tells the System loader how to load when no filename and/or no extension
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})(this);

Expand and Collapse Rows/Columns (Angular)

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