React SelectBox - Keyboard Support

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

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 UI component.
↑ / ↓ If the drop-down list is opened, moves focus to the previous/next item; otherwise, selects the previous/next item.
Page Up / Page Down Moves focus to the first/last item.
Enter or Space Selects the item.

You can implement a custom handler for a key using the registerKeyHandler(key, handler) method.

App.js
  • import React from 'react';
  • import 'devextreme/dist/css/dx.light.css';
  •  
  • import { SelectBox } from 'devextreme-react/select-box';
  •  
  • class App extends React.Component {
  • constructor(props) {
  • super(props);
  •  
  • this.selectBoxRef = React.createRef();
  • }
  •  
  • render() {
  • return (
  • <SelectBox ref={this.selectBoxRef} />
  • );
  • }
  •  
  • get selectBox() {
  • return this.selectBoxRef.current.instance;
  • }
  •  
  • componentDidMount() {
  • this.selectBox.registerKeyHandler('backspace', function(e) {
  • // The argument "e" contains information on the event
  • });
  • this.selectBox.registerKeyHandler('space', function(e) {
  • // ...
  • });
  • }
  • }
  •  
  • export default App;
See Also