React Lookup - Customize Item Appearance
For a minor customization of Lookup items, you can define specific fields in item data objects. For example, the following code generates three items: the first is not customized, the second is disabled and the third is hidden.
- import React from 'react';
- import 'devextreme/dist/css/dx.light.css';
- import { Lookup } from 'devextreme-react/lookup';
- const dataSource = [
- { text: 'HD Video Player' },
- { text: 'SuperHD Video Player', disabled: true },
- { text: 'SuperPlasma 50', visible: false }
- ];
- class App extends React.Component {
- render() {
- return (
- <Lookup
- dataSource={dataSource}
- valueExpr="text"
- displayExpr="text"
- />
- );
- }
- }
- export default App;
If you need a more flexible solution, define an itemTemplate.
- import React from 'react';
- import 'devextreme/dist/css/dx.light.css';
- import { Lookup } from 'devextreme-react/lookup';
- const dataSource = [{
- id: 1,
- name: "HD Video Player",
- imgSrc: "images/products/1-small.png"
- }, {
- id: 2,
- name: "UltraHD Player",
- imgSrc: "images/products/2-small.png"
- },
- // ...
- ];
- const renderItem = (data, index) => {
- return (
- <div>
- <img src={data.imgSrc}/>
- <div
- style={{display: 'inline-block', fontStyle: index % 2 === 0 ? 'italic' : 'normal'}}>
- {data.name}
- </div>
- </div>
- );
- };
- class App extends React.Component {
- render() {
- return (
- <Lookup
- dataSource={dataSource}
- valueExpr="id"
- itemRender={renderItem}
- />
- );
- }
- }
- export default App;
Using similar techniques, you can customize the input field of the Lookup. The template for it should be assigned to the fieldTemplate property.
- import React from 'react';
- import 'devextreme/dist/css/dx.light.css';
- import { Lookup } from 'devextreme-react/lookup';
- const dataSource = [{
- id: 1,
- name: "HD Video Player",
- imgSrc: "images/products/1-small.png"
- }, {
- id: 2,
- name: "UltraHD Player",
- imgSrc: "images/products/2-small.png"
- },
- // ...
- ];
- const renderField = (data) => {
- return (
- <img src={data && data.imgSrc}/>
- );
- };
- class App extends React.Component {
- render() {
- return (
- <Lookup
- dataSource={dataSource}
- valueExpr="id"
- displayExpr="name"
- fieldRender={renderField}
- />
- );
- }
- }
- export default App;
See Also
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