import React from 'react';
import DataSource from 'devextreme/data/data_source';
import 'devextreme/data/odata/store';
import Chart, {
ValueAxis,
ArgumentAxis,
CommonPaneSettings,
Grid,
Series,
Label,
Legend,
Size,
Border,
Tooltip,
Export,
LoadingIndicator
} from 'devextreme-react/chart';
import SelectBox from 'devextreme-react/select-box';
import { months } from './data.js';
class App extends React.Component {
constructor(props) {
super(props);
this.chartDataSource = new DataSource({
store: {
type: 'odata',
url: 'https://js.devexpress.com/Demos/WidgetsGallery/odata/WeatherItems'
},
postProcess: function(results) {
return results[0].DayItems;
},
expand: 'DayItems',
filter: ['Id', '=', 1],
paginate: false
});
this.onValueChanged = (data) => {
this.chartDataSource.filter(['Id', '=', data.value]);
this.chartDataSource.load();
};
}
render() {
return (
<div id="chart-demo">
<Chart
title="Temperature in Barcelona, 2012"
dataSource={this.chartDataSource}>
<Size height={420} />
<ValueAxis
grid={{ opacity: 0.2 }}
valueType="numeric"
>
<Label customizeText={this.customizeLabel} />
</ValueAxis>
<ArgumentAxis type="discrete">
<Grid visible={true} opacity={0.5} />
</ArgumentAxis>
<CommonPaneSettings>
<Border
visible={true}
width={2}
top={false}
right={false}
/>
</CommonPaneSettings>
<Series
argumentField="Number"
valueField="Temperature"
type="spline"
/>
<Legend visible={false} />
<Export enabled={true} />
<Tooltip
enabled={true}
customizeTooltip={customizeTooltip} />
<LoadingIndicator enabled={true} />
</Chart>
<div className="action">
<SelectBox
id="selectbox"
width={150}
valueExpr="id"
displayExpr="name"
items={months}
defaultValue={1}
onValueChanged={this.onValueChanged} />
<div className="label">Choose a month:
</div>
</div>
</div>
);
}
customizeLabel(e) {
return `${e.valueText}${'°C'}`;
}
}
function customizeTooltip(arg) {
return {
text: `${arg.valueText}${'°C'}`
};
}
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/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/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>
#selectbox {
float: right;
}
.action {
width: 270px;
margin-top: 20px;
}
.label {
padding-top: 9px;
}
export const months = [{
id: 1,
name: 'January'
}, {
id: 2,
name: 'February'
}, {
id: 3,
name: 'March'
}, {
id: 4,
name: 'April'
}, {
id: 5,
name: 'May'
}, {
id: 6,
name: 'June'
}, {
id: 7,
name: 'July'
}, {
id: 8,
name: 'August'
}, {
id: 9,
name: 'September'
}, {
id: 10,
name: 'October'
}, {
id: 11,
name: 'November'
}, {
id: 12,
name: 'December'
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/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@1.26.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.6',
'devextreme-react': 'npm:devextreme-react@20.2.6',
'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.18/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.24/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.13/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.13/hooks/dist/hooks.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-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});