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Range Selector

Discrete scale

Documentation

In this demo, a discrete scale is used to select a range within a set of categories.

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<template> <div id="range-selector-demo"> <dx-range-selector id="range-selector" :data-source="dataSource" :value.sync="range" title="Copper Production in 2013" > <dx-chart> <dx-series argument-field="country" type="bar" value-field="copper" /> </dx-chart> </dx-range-selector> <h2>Total: {{ format(totalProduction) }} tons</h2> </div> </template> <script> import { dataSource } from './data.js'; import { DxRangeSelector, DxChart, DxSeries } from 'devextreme-vue/range-selector'; export default { components: { DxRangeSelector, DxChart, DxSeries }, data() { return { dataSource, range: [] }; }, computed: { totalProduction() { let startIndex = 0; let endIndex = dataSource.length; dataSource.forEach((item, index) => { if (item.country == this.range[0]) { startIndex = index; } if (item.country == this.range[1]) { endIndex = index + 1; } }); return dataSource .slice(startIndex, endIndex) .reduce((total, item) => total + item.copper, 0); } }, methods: { format: new Intl.NumberFormat('en-US', { minimumFractionDigits: 0 }).format } }; </script> <style scoped> #range-selector-demo { text-align: center; } #range-selector { margin-bottom: 20px; height: 200px; } </style>
import Vue from 'vue'; import App from './App.vue'; new Vue({ el: '#app', components: { App }, template: '<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="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.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"> <span v-if="false">Loading...</span> </div> </div> </body> </html>
export const dataSource = [ { country: 'Chile', copper: 5700000 }, { country: 'United States', copper: 1220000 }, { country: 'Peru', copper: 1300000 }, { country: 'China', copper: 1650000 }, { country: 'Australia', copper: 990000 }, { country: 'Russia', copper: 930000 }, { country: 'DR Congo', copper: 900000 }, { country: 'Finland', copper: 119000 } ];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, map: { vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js', 'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-vue': 'npm:devextreme-vue@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', 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, meta: { '*.vue': { loader: 'vue-loader' } }, packages: { 'devextreme-vue': { main: 'index.js' }, 'devextreme': { defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true } });