React CheckBox - Keyboard Support

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

Key Action
Space Changes the UI component value.

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

jQuery
JavaScript
function registerKeyHandlers () {
    const checkBox = $("#checkBoxContainer").dxCheckBox("instance");
    checkBox.registerKeyHandler("backspace", function(e) {
        // The argument "e" contains information on the event
    });
    checkBox.registerKeyHandler("space", function(e) {
        // ...
    });
}
Angular
TypeScript
import { ..., ViewChild, AfterViewInit } from '@angular/core';
import { DxCheckBoxModule, DxCheckBoxComponent } from 'devextreme-angular';
// ...
export class AppComponent implements AfterViewInit {
    @ViewChild(DxCheckBoxComponent, { static: false }) checkBox: DxCheckBoxComponent;
    // Prior to Angular 8
    // @ViewChild(DxCheckBoxComponent) checkBox: DxCheckBoxComponent;

    ngAfterViewInit () {
        this.checkBox.instance.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.checkBox.instance.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
@NgModule({
    imports: [
        // ...
        DxCheckBoxModule
    ],
    // ...
})
Vue
<template>
    <DxCheckBox :ref="myCheckBoxRef" />
</template>
<script>
import 'devextreme/dist/css/dx.light.css';

import DxCheckBox from 'devextreme-vue/check-box';

const myCheckBoxRef = 'my-check-box';

export default {
    components: {
        DxCheckBox
    },
    data() {
        return {
            myCheckBoxRef
        }
    },
    computed: {
        checkBox: function() {
            return this.$refs[myCheckBoxRef].instance;
        }
    },
    mounted: function() {
        this.checkBox.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.checkBox.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
</script>
React
App.js
import React from 'react';
import 'devextreme/dist/css/dx.light.css';

import { CheckBox } from 'devextreme-react/check-box';

class App extends React.Component {
    constructor(props) {
        super(props);

        this.checkBoxRef = React.createRef();
    }

    render() {
        return (
            <CheckBox ref={this.checkBoxRef} />
        );
    }

    get checkBox() {
        return this.checkBoxRef.current.instance;
    }

    componentDidMount() {
        this.checkBox.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.checkBox.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}

export default App;
See Also