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Load Indicator

Load Indicator

Documentation

The LoadIndicator is a UI element notifying the viewer that a process is in progress.

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import React from 'react'; import { Button } from 'devextreme-react/button'; import { LoadIndicator } from 'devextreme-react/load-indicator'; class App extends React.Component { constructor(props) { super(props); this.state = { loadIndicatorVisible: false, buttonText: 'Send' }; this.handleClick = this.handleClick.bind(this); } render() { return ( <div className={'form'}> <div className={'label'}>Custom size</div> <LoadIndicator id={'small-indicator'} height={20} width={20} /> <LoadIndicator id={'medium-indicator'} height={40} width={40} /> <LoadIndicator id={'large-indicator'} height={60} width={60} /> <div className={'label'}>Custom image</div> <LoadIndicator id={'image-indicator'} indicatorSrc={'../../../../images/Loading.gif'} /> <div className={'label'}>Using with other widgets</div> <Button id={'button'} width={180} height={40} onClick={this.handleClick} > <LoadIndicator className={'button-indicator'} visible={this.state.loadIndicatorVisible} /> <span className={'dx-button-text'}>{this.state.buttonText}</span> </Button> </div> ); } handleClick() { this.setState( { loadIndicatorVisible: true, buttonText: 'Sending' }, () => { setTimeout(() => { this.setState({ loadIndicatorVisible: false, buttonText: 'Send' }); }, 2000); } ); } } export default App;
import React from 'react'; import ReactDOM from 'react-dom'; import App from './App.js'; ReactDOM.render( <App />, document.getElementById('app') );
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="styles.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"></div> </div> </body> </html>
.form { padding: 10px 0 0 10px; } .label { margin-bottom: 10px; font-size: 16px; } .label:not(:first-child) { margin-top: 30px; } #small-indicator, #medium-indicator, #large-indicator { vertical-align: middle; margin-right: 10px; } #button, #button .dx-button-content { padding: 0; } #button .button-indicator { height: 32px; width: 32px; display: inline-block; vertical-align: middle; margin-right: 5px; }
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, defaultExtension: 'js', map: { 'react': 'npm:react@16/umd/react.development.js', 'react-dom': 'npm:react-dom@16/umd/react-dom.development.js', 'prop-types': 'npm:prop-types/prop-types.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-react': 'npm:devextreme-react@19.2', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devexpress-gantt': 'npm:devexpress-gantt', // SystemJS plugins 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme': { defaultExtension: 'js' }, 'devextreme-react': { main: 'index.js' } }, babelOptions: { sourceMaps: false, stage0: true, react: true } });