JavaScript/jQuery Lookup - Overview

The Lookup is a UI component that allows an end user to search for an item in a collection shown in a drop-down menu.

View Demo

The following code adds the Lookup UI component to your page. The simplest configuration requires only a dataSource to be specified. In addition, you can define the placeholder to be displayed when the Lookup input field is empty.

HTML
JavaScript
  • <div id="lookupContainer"></div>
  • $(function() {
  • $("#lookupContainer").dxLookup({
  • dataSource: [
  • "HD Video Player",
  • "SuperHD Video Player",
  • "SuperPlasma 50",
  • // ...
  • ],
  • placeholder: "Select a product..."
  • });
  • });

If your data is an array of objects, specify:

  • valueExpr
    The data field whose value will be written into the value property.
  • displayExpr
    The data field whose value will be displayed within the inner List UI component and in the input field of the Lookup.
JavaScript
  • const lookupData = [
  • { id: 1, country: "Afghanistan" },
  • { id: 2, country: "Albania" },
  • // ...
  • ];
  •  
  • $(function() {
  • $("#lookupContainer").dxLookup({
  • dataSource: lookupData,
  • valueExpr: 'id',
  • displayExpr: 'country'
  • });
  • });
See Also