DevExtreme jQuery - Keyboard Support
An end user can use the following keys to interact with the widget.
Key | Action |
---|---|
Alt + ↓ | Opens the drop-down list. |
Alt + ↑ | Closes the drop-down list. |
Esc | Closes the drop-down list and removes focus from the widget. |
↑ / ↓ | Moves focus to the previous/next item. Active only when the drop-down list is open. |
Page Up / Page Down | Moves focus to the first/last currently rendered item. |
Enter or Space | Selects the current item. |
Backspace | Unselects the last selected item. |
You can implement a custom handler for a key using the registerKeyHandler(key, handler) method.
jQuery
JavaScript
function registerKeyHandlers () { let tagBox = $("#tagBoxContainer").dxTagBox("instance"); tagBox.registerKeyHandler("backspace", function (e) { // The argument "e" contains information on the event }); tagBox.registerKeyHandler("space", function (e) { // ... }); }
Angular
TypeScript
import { ..., ViewChild, AfterViewInit } from "@angular/core"; import { DxTagBoxModule, DxTagBoxComponent } from "devextreme-angular"; // ... export class AppComponent implements AfterViewInit { @ViewChild(DxTagBoxComponent, { static: false }) tagBox: DxTagBoxComponent // Prior to Angular 8 // @ViewChild(DxTagBoxComponent) tagBox: DxTagBoxComponent ngAfterViewInit () { this.tagBox.instance.registerKeyHandler("backspace", function (e) { // The argument "e" contains information on the event }); this.tagBox.instance.registerKeyHandler("space", function (e) { // ... }); } } @NgModule({ imports: [ // ... DxTagBoxModule ], // ... })
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