Automatically add items to ComboBox and AutoComplete (Angular)

You can add items to an AutoComplete or ComboBox controls by pushing an item onto the data source array. This example demonstrates how to add items to both controls.

Learn about Input Controls | AutoComplete API Reference

This example uses Angular.

app.component.ts
index.html
app.component.html
styles.css
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import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import * as wijmo from '@mescius/wijmo'; import * as input from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; // @Component({ standalone: true, imports: [WjInputModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { countries = new wijmo.ObservableArray(['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece']); // lostFocus(sender: input.ComboBox) { let item = sender.text; if (item && this.countries.indexOf(item) < 0) { this.countries.push(item); } } } // // 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 * as input from '@mescius/wijmo.input'; // import '@angular/compiler'; import { Component, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; // @Component({ standalone: true, imports: [WjInputModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { countries = new wijmo.ObservableArray(['US', 'Germany', 'UK', 'Japan', 'Italy', 'Greece']); // lostFocus(sender: input.ComboBox) { let item = sender.text; if (item && this.countries.indexOf(item) < 0) { this.countries.push(item); } } } // // 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>Auto-Add items to ComboBox and AutoComplete</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"> <h3> ComboBox</h3> <p> Type an item that is not on the list and move the focus to another control to add an item.</p> <wj-combo-box #combo [itemsSource]="countries" [isEditable]="true" (lostFocus)="lostFocus(combo)"> </wj-combo-box> <h3> AutoComplete</h3> <p> Type an item that is not on the list and move the focus to another control to add an item.</p> <wj-auto-complete #autoComplete [itemsSource]="countries" (lostFocus)="lostFocus(autoComplete)"></wj-auto-complete> <h3> Options</h3> <p> Here is the option list (it is updated as items are added to the list):</p> <wj-list-box [itemsSource]="countries"></wj-list-box> </div>
.wj-listbox, .wj-dropdown { width: 250px; }
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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);