Field Formats (Angular)

The PivotField.format property determines how raw values are formatted for display and also for breaking values into groups. This example shows how changing the format property of a dimension fields affects data grouping. If the field format shows the quarter, the data is grouped by quarter. If it shows the month, the data is grouped by month.

Learn about OLAP | PivotPanel Documentation | PivotPanel API Reference

This example uses Angular.

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 * as wjInput from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, Inject, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { WjOlapModule } from '@mescius/wijmo.angular2.olap'; import { DataService } from './app.data'; // class FormatItem { name: string; value: string; } // @Component({ standalone: true, providers: [DataService], imports: [WjOlapModule, WjInputModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { ng: wjOlap.PivotEngine; fld: wjOlap.PivotField; formats: FormatItem[]; // constructor(@Inject(DataService) private dataService: DataService) { this.ng = new wjOlap.PivotEngine({ autoGenerateFields: false, // turn off auto-generation fields: [ // specify the fields we want (no date) { binding: 'date', header: 'Year', format: 'yyyy' }, { binding: 'date', header: 'Period', format: '"Q"q' }, { binding: 'buyer', header: 'Person' }, { binding: 'type', header: 'Category' }, { binding: 'amount', header: 'Total', format: 'c0', aggregate: 'Sum' }, { binding: 'amount', header: 'Average', format: 'c0', aggregate: 'Avg' }, ], itemsSource: dataService.getData(1000), // raw data showRowTotals: 'Subtotals', valueFields: ['Total', 'Average'], // show amount spent rowFields: ['Year', 'Period'], // by Year and Quarter }); this.fld = this.ng.fields.getField('Period'); // this.formats = [ { name: 'Quarter ("Q"q)', value: '"Q"q' }, { name: 'Fiscal Quarter ("FQ"u)', value: '"FQ"u' }, { name: 'Long Month (MMMM)', value: 'MMMM' }, { name: 'Short Month (MMM)', value: 'MMM' }, { name: 'Month Number (M )', value: 'M ' }, ]; } // onTextChanged(combox: wjInput.ComboBox) { this.fld.format = combox.selectedValue; } } // // 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 Fields Format</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-pivot-grid [itemsSource]="ng"> </wj-pivot-grid> <p> Customize the "Period" field by changing its format: </p> <wj-combo-box #combo [itemsSource]="formats" [displayMemberPath]="'name'" [selectedValuePath]="'value'" (textChanged)="onTextChanged(combo)"> </wj-combo-box> </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; } }
.container>label { width: 120px; text-align: right; } .container>.wj-control { margin-bottom: 6px; } .wj-flexgrid { height: 200px; } body { margin-bottom: 24pt; }
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'@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);