DevExtreme React - Overview
The Lookup is a widget that allows an end user to search for an item in a collection shown in a drop-down menu.
The following code adds the Lookup widget 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.
jQuery
HTML
JavaScript
<div id="lookupContainer"></div>
$(function() { $("#lookupContainer").dxLookup({ dataSource: [ "HD Video Player", "SuperHD Video Player", "SuperPlasma 50", // ... ], placeholder: "Select a product..." }); });
Angular
HTML
TypeScript
<dx-lookup [dataSource]="lookupDataSource" placeholder="Select a product..."> </dx-lookup>
import { DxLookupModule } from "devextreme-angular"; // ... export class AppComponent { lookupDataSource = [ "HD Video Player", "SuperHD Video Player", "SuperPlasma 50" ]; } @NgModule({ imports: [ // ... DxLookupModule ], // ... })
If your data is an array of objects, specify:
- valueExpr
The data field whose value will be written into the value option. - displayExpr
The data field whose value will be displayed within the inner List widget and in the input field of the Lookup.
jQuery
JavaScript
var lookupData = [ { id: 1, country: "Afghanistan" }, { id: 2, country: "Albania" }, // ... ]; $(function() { $("#lookupContainer").dxLookup({ dataSource: lookupData, valueExpr: 'id', displayExpr: 'country' }); });
Angular
HTML
TypeScript
<dx-lookup [dataSource]="lookupDataSource" valueExpr="id" displayExpr="country"> </dx-lookup>
import { DxLookupModule } from "devextreme-angular"; // ... export class AppComponent { lookupDataSource = [ { id: 1, country: "Afghanistan" }, { id: 2, country: "Albania" }, // ... ]; } @NgModule({ imports: [ // ... DxLookupModule ], // ... })
See Also
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