Demos
Input(Angular)
ComboBox
Strings

ComboBox with Strings (Angular)

By default, the ComboBox acts as a regular HTML input element, with the additional styling and object model associated with all Wijmo controls.

Learn about Input Controls | ComboBox API Reference

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

import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { WjInputModule } from '@mescius/wijmo.angular2.input';
import { DataService } from './app.data';
//
@Component({
  standalone: true,
  providers: [DataService],
  imports: [WjInputModule, FormsModule, BrowserModule],
  selector: 'app-component',
  templateUrl: 'src/app.component.html',
})
export class AppComponent {
  countries: string[];
  //
  constructor(@Inject(DataService) private dataService: DataService) {
    this.countries = dataService.getCountries();
  }
}
//

//
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 '@angular/compiler'; import { Component, enableProdMode, Inject, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { DataService } from './app.data'; // @Component({ standalone: true, providers: [DataService], imports: [WjInputModule, FormsModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent { countries: string[]; // constructor(@Inject(DataService) private dataService: DataService) { this.countries = dataService.getCountries(); } } // // 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 ComboBox with Strings</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"> <p> The <b>text</b> property gets or sets the user's input: </p> <div class="form-group"> <label for="theComboNoSrc">Any string:</label> <wj-combo-box #theComboNoSrc id="theComboNoSrc"></wj-combo-box> </div> <p> You have typed this: <b>{{ theComboNoSrc.text }}</b>. </p> <h4> Choosing from Lists </h4> <p> If you want to provide a list of strings for users to choose from, set the <b>itemsSource</b> property to an array containing those items and users will be able to select one of them: </p> <div class="form-group"> <label for="theCombo">Select a Country:</label> <wj-combo-box #theCombo id="theCombo" [itemsSource]="countries"></wj-combo-box> </div> <p> You have selected this country: <b>{{ theCombo.selectedValue }}</b>. </p> <h4> Simple Customizations </h4> <p> By default, the ComboBox will force users to select one of the items on the list. Users will not be able to leave the combo empty or to enter values that are not on the list. </p> <p> You can change these behaviors by setting the <b>isRequired</b> and <b>isEditable</b> properties:</p> <p> <label> <input id="isRequired" type="checkbox" [(ngModel)]="theComboCustom.isRequired"> isRequired </label> </p> <p> <label> <input id="isEditable" type="checkbox" [(ngModel)]="theComboCustom.isEditable"> isEditable </label> </p> <div class="form-group"> <label for="theComboCustom">Select a Country:</label> <wj-combo-box #theComboCustom id="theComboCustom" [isRequired]="false" [isEditable]="true" [placeholder]="'No Country Selected'" [itemsSource]="countries"></wj-combo-box> </div> <p> You have selected this country: <b>{{ theComboCustom.text }}</b>. </p> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getCountries() { return ['Austria', 'Australia', 'Belgium', 'Brazil', 'Canada', 'Chile', 'Denmark', 'Estonia', 'France', 'Germany', 'Hungary', 'Italy', 'Israel', 'Japan', 'Korea', 'Mexico', 'Norway', 'Oman', 'Poland', 'Qatar', 'Russia', 'Sweden', 'Scotland', 'Turkey', 'United Kingdom', 'United States', 'Vietnam', 'Yemen', 'Zambia']; } }
h4 { margin-top: 24px; } body { margin-bottom: 24px; } label { margin-right: 3px; }
(function (global) { SystemJS.config({ transpiler: './plugin-typescript.js', typescriptOptions: { "target": "ES2022", "module": "system", "emitDecoratorMetadata": true, "experimentalDecorators": true, }, baseURL: 'node_modules/', meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'systemjs-plugin-css' }, '*.mjs': { format: 'esm' }, }, paths: { // paths serve as alias 'npm:': '' }, packageConfigPaths: [ '/node_modules/*/package.json', "/node_modules/@angular/*/package.json", "/node_modules/@mescius/*/package.json" ], map: { 'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js', 'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js', "rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js", 'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', 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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);