Angular Switch - Keyboard Support

An end user can use the following keys to interact with the UI component.

Key Action
Enter or Space Changes the UI component value.
Changes the switch state to "On".
Changes the switch state to "Off".

Use the registerKeyHandler(key, handler) method to implement a custom handler for a key.

TypeScript
  • import { ..., ViewChild, AfterViewInit } from '@angular/core';
  • import { DxSwitchModule, DxSwitchComponent } from 'devextreme-angular';
  • // ...
  • export class AppComponent implements AfterViewInit {
  • @ViewChild(DxSwitchComponent, { static: false }) switch: DxSwitchComponent;
  • // Prior to Angular 8
  • // @ViewChild(DxSwitchComponent) switch: DxSwitchComponent;
  •  
  • ngAfterViewInit () {
  • this.switch.instance.registerKeyHandler('backspace', function(e) {
  • // The argument "e" contains information on the event
  • });
  • this.switch.instance.registerKeyHandler('space', function(e) {
  • // ...
  • });
  • }
  • }
  • @NgModule({
  • imports: [
  • // ...
  • DxSwitchModule
  • ],
  • // ...
  • })
See Also