PivotEngine Sort Control (Angular)

The PivotEngine automatically sorts Dimension fields when it generates data summaries. It does not sort Measure fields by default. You can change the sort direction on row and column fields by setting the field's sort property in code. Measure fields are not sorted by default. You can set their sort direction by changing the sortDescriptions property of the engine's pivotView collection. This example shows how you can apply sorts to dimension and measure fields.

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 wjCore from '@mescius/wijmo'; import * as wjOlap from '@mescius/wijmo.olap'; import * as wjInput from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, Inject, enableProdMode, ViewChild, 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 { @ViewChild('theGrid', { static: true }) pivotGrid: wjOlap.PivotGrid; @ViewChild('sortSales', { static: true }) sortSales: wjInput.ComboBox; @ViewChild('sortExpenses', { static: true }) sortExpenses: wjInput.ComboBox; ng: wjOlap.PivotEngine; sortOptions: string[]; sortOptions2: string[]; // constructor(@Inject(DataService) private dataService: DataService) { this.ng = new wjOlap.PivotEngine({ itemsSource: dataService.getData(100), rowFields: ['Country', 'Product'], valueFields: ['Sales', 'Expenses'], }); // this.sortOptions = 'Ascending,Descending'.split(','); this.sortOptions2 = 'None,Ascending,Descending'.split(','); } onSelectedIndexChanged(s: wjInput.ComboBox, field: string) { this.ng.fields.getField(field).descending = s.selectedIndex == 1; } onSubtotalsClick(e: MouseEvent) { this.ng.showRowTotals = (e.target as HTMLInputElement).checked ? wjOlap.ShowTotals.Subtotals : wjOlap.ShowTotals.GrandTotals; } updateMeasureSort() { var sd = this.ng.pivotView.sortDescriptions; sd.clear(); this._addMeasureSort('Sales', this.sortSales.text); this._addMeasureSort('Expenses', this.sortExpenses.text); } _addMeasureSort(fieldName: string, sortDirection: string) { if (sortDirection != 'None') { var sd = this.ng.pivotView.sortDescriptions, cols = this.pivotGrid.columns; for (var c = 0; c < cols.length; c++) { var binding = cols[c].binding; if (binding.indexOf(fieldName) == 0) { sd.push(new wjCore.SortDescription(binding, sortDirection == 'Ascending')); } } } } } // // 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 Sort</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-4 panel"> <h4> Sort Dimension fields </h4> <label> Country: <wj-combo-box #countryCombo [itemsSource]="sortOptions" (selectedIndexChanged)='onSelectedIndexChanged(countryCombo, "Country")'> </wj-combo-box> </label> <label> Product: <wj-combo-box #productCombo [itemsSource]="sortOptions" (selectedIndexChanged)='onSelectedIndexChanged(productCombo, "Product")'> </wj-combo-box> </label> <h4> Sort Measure fields </h4> <label> Sales: <wj-combo-box #sortSales [itemsSource]="sortOptions2" (selectedIndexChanged)="updateMeasureSort()"> </wj-combo-box> </label> <label> Expenses: <wj-combo-box #sortExpenses [itemsSource]="sortOptions2" (selectedIndexChanged)="updateMeasureSort()"> </wj-combo-box> </label> <label> Subtotals: <input id="subtotals" type="checkbox" (click)="onSubtotalsClick($event)"> </label> </div> <div class="col-sm-8"> <wj-pivot-grid #theGrid [itemsSource]="ng"> </wj-pivot-grid> </div> </div> </div>
import { Injectable } from '@angular/core'; import * as wjCore from '@mescius/wijmo'; export interface DataItem { country: string; product: string; downloads: number; sales: number; expenses: number; } @Injectable() export class DataService { getData(cnt: number): DataItem[] { var countries = 'US,Germany,UK,Japan,Italy'.split(','), products = 'Widgets,Gadgets,Doohickeys'.split(','), data = []; for (var i = 0; i < cnt; i++) { data.push({ country: countries[i % countries.length], product: products[i % products.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } return data; } }
.wj-pivotgrid { box-shadow: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23); } .panel label { display: block; } .panel label .wj-combobox { font-weight: normal; } h4 { margin-top: 20pt; } body { margin-bottom: 24pt; }
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