Key	Action
Alt + ↓	Opens the drop-down menu.
Enter or Space	If the drop-down menu is closed, opens it; otherwise selects the current item.
Esc	Closes the drop-down menu.
↑ / ↓	If the drop-down menu is opened, moves focus to the previous/next item.
Tab / Shift + Tab	If the drop-down menu is opened, moves focus to the list / search field.
Page Up / Page Down	Moves focus to the first/last menu item on the page.
Home / End	Moves focus to the first/last menu item.

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

jQuery

JavaScript

function registerKeyHandlers () {
    const lookup = $("#lookupContainer").dxLookup("instance");
    lookup.registerKeyHandler("backspace", function(e) {
        // The argument "e" contains information on the event
    });
    lookup.registerKeyHandler("space", function(e) {
        // ...
    });
}

Angular

TypeScript

import { ..., ViewChild, AfterViewInit } from '@angular/core';
import { DxLookupModule, DxLookupComponent } from 'devextreme-angular';
// ...
export class AppComponent implements AfterViewInit {
    @ViewChild(DxLookupComponent, { static: false }) lookup: DxLookupComponent;
    // Prior to Angular 8
    // @ViewChild(DxLookupComponent) lookup: DxLookupComponent;

    ngAfterViewInit () {
        this.lookup.instance.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.lookup.instance.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
@NgModule({
    imports: [
        // ...
        DxLookupModule
    ],
    // ...
})

Vue

<template>
    <DxLookup :ref="myLookupRef" />
</template>
<script>
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import DxLookup from 'devextreme-vue/lookup';

const myLookupRef = 'my-lookup';

export default {
    components: {
        DxLookup
    },
    data() {
        return {
            myLookupRef
        }
    },
    computed: {
        lookup: function() {
            return this.$refs[myLookupRef].instance;
        }
    },
    mounted: function() {
        this.lookup.registerKeyHandler('backspace', function(e) {
            // The argument "e" contains information on the event
        });
        this.lookup.registerKeyHandler('space', function(e) {
            // ...
        });
    }
}
</script>

React

App.js

import React from 'react';
import 'devextreme/dist/css/dx.common.css';
import 'devextreme/dist/css/dx.light.css';

import { Lookup } from 'devextreme-react/lookup';

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

        this.lookupRef = React.createRef();
    }

    render() {
        return (
            <Lookup ref={this.lookupRef} />
        );
    }

    get lookup() {
        return this.lookupRef.current.instance;
    }

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

export default App;

General Information

.NET Subscription

Common Tools

Quality Assurance and Productivity

Desktop

Controls

Tools

Frameworks and Libraries

Web

Controls and Extensions

Tools

Maintenance Mode

Mobile

Enterprise and Analytic Tools

End-User Documentation

General Information

.NET Subscription

Common Tools

Quality Assurance and Productivity

Desktop

Controls

Tools

Frameworks and Libraries

Web

Controls and Extensions

Tools

Maintenance Mode

Mobile

Enterprise and Analytic Tools

End-User Documentation

JavaScript/jQuery Lookup - Keyboard Support

jQuery

Angular

Vue

React

See Also