CollectionView Paging (Angular)

Paging is a common technique for dealing with large collections of data.

The CollectionView class supports client-side paging by default, so you can generate grids and tables that contain only a reasonable amount of data.

To enable paging, set the pageSize property and use the moveToPage method to select the page you want to display.

The sample below incorperates the CollectionViewNavigator control to assist the user in navigating the pages of the FlexGrid control.

Learn about FlexGrid | Paging Documentation | FlexGrid API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjGridModule } from '@mescius/wijmo.angular2.grid'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { CollectionView } from '@mescius/wijmo'; @Component({ standalone: true, imports: [WjGridModule, WjInputModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data = this._getData(); private _getData() { // create an array with 1000 data items let countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','); let products = 'Piano,Violin,Flute,Guitar,Cello'.split(','); let data = []; for (let i = 0; i < 1000; i++) { data.push({ id: i, country: countries[i % countries.length], product: products[i % products.length], sales: Math.random() * 10000, expenses: Math.random() * 5000 }); } // create a paged CollectionView with 6 items per page return new CollectionView(data, { pageSize: 6 }); } } 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 FlexGrid Client-Side Paging</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-collection-view-navigator headerFormat="Page {currentPage:n0} of {pageCount:n0}" [byPage]="true" [cv]="data"> </wj-collection-view-navigator> <wj-flex-grid #flex headersVisibility="Column" [alternatingRowStep]="0" [itemsSource]="data"> </wj-flex-grid> </div>
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);