Progress Bar
Documentation
The ProgressBar is a UI component that shows current progress.
Feel free to share demo-related thoughts here.
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If you have technical questions, please create a support ticket in the DevExpress Support Center.
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import React from 'react';
import { Button } from 'devextreme-react/button';
import { ProgressBar } from 'devextreme-react/progress-bar';
const maxValue = 10;
function formatTime(value) {
return `00:00:${ (`0${ value}`).slice(-2)}`;
}
function statusFormat(value) {
return `Loading: ${ value * 100 }%`;
}
let intervalId;
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
seconds: maxValue,
buttonText: 'Start progress',
inProgress: false
};
this.onButtonClick = this.onButtonClick.bind(this);
this.timer = this.timer.bind(this);
}
render() {
return (
<div className="form">
<Button
id="progress-button"
text={this.state.buttonText}
width={200}
onClick={this.onButtonClick}
/>
<div className="progress-info">
Time left {formatTime(this.state.seconds)}
</div>
<ProgressBar
id="progress-bar-status"
className={this.state.seconds == 0 ? 'complete' : '' }
width="90%"
min={0}
max={maxValue}
statusFormat={statusFormat}
value={maxValue - this.state.seconds}
/>
</div>
);
}
onButtonClick() {
const state = {
inProgress: !this.state.inProgress
};
if (this.state.inProgress) {
state.buttonText = 'Continue progress';
clearInterval(intervalId);
} else {
state.buttonText = 'Stop progress';
if (this.state.seconds === 0) {
state.seconds = maxValue;
}
intervalId = setInterval(() => this.timer(), 1000);
}
this.setState(state);
}
timer() {
const state = {
seconds: this.state.seconds - 1
};
if (state.seconds == 0) {
state.buttonText = 'Restart progress';
state.inProgress = !this.state.inProgress;
clearInterval(intervalId);
}
this.setState(state);
}
}
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/21.1.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.1.6/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: 20% 0;
text-align: center;
}
#progress-button {
margin-bottom: 20px;
}
#progress-bar-status {
display: inline-block;
}
.complete .dx-progressbar-range {
background-color: green;
}
window.config = {
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@21.1.6/cjs',
'devextreme-react': 'npm:devextreme-react@21.1.6',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.4.2/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.32/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@3.0.14/dist/dx-gantt.js',
'@devextreme/vdom': 'npm:@devextreme/vdom@1.2.2',
'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.10/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.10/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.10/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class@7.4.10/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'@devextreme/vdom': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
packageConfigPaths: [
"npm:@devextreme/*/package.json",
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
};
System.config(window.config);