Sorting in the PivotGrid (Angular)

The PivotEngine automatically sorts Dimension fields when it generates data summaries. It does not sort Measure fields by default. Users may switch the sort direction by clicking the headers on any PivotGrid control attached to the engine, when the grid's allowSorting property is set to true. The PivotGrid control does not show dimension field sort setting by default, but you can set the showRowFieldSort property to true if you want that feature.

Learn about OLAP | PivotGrid Sorting Documentation | PivotGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjCore from '@mescius/wijmo'; import * as wjOlap from '@mescius/wijmo.olap'; import * as wjInput from '@mescius/wijmo.input'; import '@mescius/wijmo.touch'; // support drag/drop on touch devices // 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 Pivot Grid 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'; 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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