Demos
Wijmo(Angular)
CollectionView
Creating Views
Sorting
Overview

CollectionView Sorting (Angular)

The CollectionView has a sortDescriptions property that controls the sorting behavior of items in the collection. The sample below demonstrates some simple sorting scenarios and updates the sortDescriptions property with SortDescription objects to apply the sort.

This example uses Angular.

JavaScript
Angular
Vue
React
app.component.ts
index.html
app.component.html
app.data.ts
styles.css
Copy to CodeMine
import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
//
import * as wijmo from '@mescius/wijmo';
//

import '@angular/compiler';
import { Component, Inject, enableProdMode, ɵresolveComponentResources } from '@angular/core';

import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import { WjGridModule } from '@mescius/wijmo.angular2.grid';
import { DataService } from './app.data';
//
@Component({
  standalone: true,
  providers: [DataService],
  imports: [WjGridModule, BrowserModule],
  selector: 'app-component',
  templateUrl: 'src/app.component.html',
})
export class AppComponent {
  view: wijmo.CollectionView;
  //
  constructor(@Inject(DataService) private dataService: DataService) {
    this.view = new wijmo.CollectionView(dataService.getData());
    //
    document.addEventListener('change', (e) => {
      // remove the old sort
      this.view.sortDescriptions.clear();
      //
      // add the new sorts
      (<HTMLInputElement>e.target).value.split(',').forEach((prop) => {
        // Sort country in ascending order, other in descending order
        this.view.sortDescriptions.push(new wijmo.SortDescription(prop, prop === 'country'));
      });
    });
  }
}
//

//
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 * as wijmo from '@mescius/wijmo'; // import '@angular/compiler'; import { Component, Inject, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; import { DataService } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjGridModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { view: wijmo.CollectionView; // constructor(@Inject(DataService) private dataService: DataService) { this.view = new wijmo.CollectionView(dataService.getData()); // document.addEventListener('change', (e) => { // remove the old sort this.view.sortDescriptions.clear(); // // add the new sorts (<HTMLInputElement>e.target).value.split(',').forEach((prop) => { // Sort country in ascending order, other in descending order this.view.sortDescriptions.push(new wijmo.SortDescription(prop, prop === 'country')); }); }); } } // // 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 CollectionView Sorting Overview</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"> <form> <label> <input type="radio" name="sort" value="" checked="true" /> No Sort </label> <label> <input type="radio" name="sort" value="country" /> Sort by Country </label> <label> <input type="radio" name="sort" value="country,sales" /> Sort by Country and Sales </label> <label> <input type="radio" name="sort" value="country,sales,downloads" /> Sort by Country, Sales, and Downloads </label> </form> <p> Result: </p> <wj-flex-grid [itemsSource]="view" [showSort]="true" [allowSorting]="false" [alternatingRowStep]="0" [headersVisibility]="'Column'"> </wj-flex-grid> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getData() { let countries = ['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece'], data = []; // for (let i = 0; i < 1000; i++) { data.push({ country: countries[i % countries.length], downloads: Math.round(Math.random() * 20000), sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } // return data; } }
.wj-flexgrid { max-height: 250px; } label { width: 100% }
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'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);