Field ShowAs (Angular)

The PivotField.showAs property allows you to specify common calculations to be performed on the field value before it is displayed. Options for this property are defined by the ShowAs enumeration and include differences between the value and the one in the previous row or column, percentages over the row, column, or grand total, and running totals.

Learn about OLAP | PivotPanel Documentation | PivotPanel API Reference

This example uses Angular.

app.component.ts
index.html
app.component.html
app.data.ts
styles.css
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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'; // @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; showAsOptions: string[]; showAsText: string; // 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: 'MMM' }, { binding: 'buyer', header: 'Person' }, { binding: 'type', header: 'Category' }, { binding: 'amount', header: 'Amount', format: 'c0', aggregate: 'Sum' }, { binding: 'amount', header: 'Show As', format: 'c0', aggregate: 'Sum' }, ], itemsSource: dataService.getData(1000), // raw data showRowTotals: 'Subtotals', valueFields: ['Amount', 'Show As'], // show amount spent rowFields: ['Year', 'Period'], // by Year and Quarter }); this.fld = this.ng.fields.getField('Show As'); this.showAsText = wjOlap.ShowAs[this.fld.showAs]; // this.showAsOptions = 'NoCalculation,DiffRow,DiffRowPct,DiffCol,DiffColPct,PctGrand,PctRow,PctCol,RunTot,RunTotPct'.split(','); } // onTextChanged(combox: wjInput.ComboBox) { this.fld.showAs = wjOlap.ShowAs[combox.text]; this.fld.format = combox.text.indexOf('Pct') > -1 ? 'p0' : 'c0'; } // onPeriodInColumns(e: MouseEvent) { let list = (e.target as HTMLInputElement).checked ? this.ng.columnFields : this.ng.rowFields; list.push('Period'); } } // // 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 '@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'; // @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; showAsOptions: string[]; showAsText: string; // 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: 'MMM' }, { binding: 'buyer', header: 'Person' }, { binding: 'type', header: 'Category' }, { binding: 'amount', header: 'Amount', format: 'c0', aggregate: 'Sum' }, { binding: 'amount', header: 'Show As', format: 'c0', aggregate: 'Sum' }, ], itemsSource: dataService.getData(1000), // raw data showRowTotals: 'Subtotals', valueFields: ['Amount', 'Show As'], // show amount spent rowFields: ['Year', 'Period'], // by Year and Quarter }); this.fld = this.ng.fields.getField('Show As'); this.showAsText = wjOlap.ShowAs[this.fld.showAs]; // this.showAsOptions = 'NoCalculation,DiffRow,DiffRowPct,DiffCol,DiffColPct,PctGrand,PctRow,PctCol,RunTot,RunTotPct'.split(','); } // onTextChanged(combox: wjInput.ComboBox) { this.fld.showAs = wjOlap.ShowAs[combox.text]; this.fld.format = combox.text.indexOf('Pct') > -1 ? 'p0' : 'c0'; } // onPeriodInColumns(e: MouseEvent) { let list = (e.target as HTMLInputElement).checked ? this.ng.columnFields : this.ng.rowFields; list.push('Period'); } } // // 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 ShowAs Functions</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> Change the value of the field's <b>showAs</b> property: </p> <wj-combo-box #combo [itemsSource]="showAsOptions" [text]="showAsText" (textChanged)="onTextChanged(combo)"> </wj-combo-box> <p> <label> Show Period in columns <input id="periodInColumns" type="checkbox" (click)="onPeriodInColumns($event)"> </label> </p> </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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