Variable Number of Bars

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This demo shows how to use the API of the BarGauge to change the number of indicated values at runtime. For this purpose, an array of new values is passed as the parameter of the value method.

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<template> <div> <div class="long-title"> <h3>Sampling by Goods</h3> </div> <div id="gauge-demo"> <DxBarGauge id="gauge" ref="gauge" :start-value="0" :end-value="50" :values="values" > <DxLabel :format="format" /> </DxBarGauge> <div id="panel"> <DxCheckBox v-for="p in products" :data="p" :key="p.name" :value.sync="p.active" :text="p.name" /> </div> </div> </div> </template> <script> import { products } from './data.js'; import { DxBarGauge, DxLabel } from 'devextreme-vue/bar-gauge'; import { DxCheckBox } from 'devextreme-vue/check-box'; export default { components: { DxBarGauge, DxLabel, DxCheckBox }, data() { return { products: products, format: { type: 'fixedPoint', precision: 0 } }; }, computed: { values: function() { return products.filter(p=>p.active).map(p=>p.count); } }, }; </script> <style scoped> #gauge-demo { height: 440px; width: 100%; } #gauge { width: 80%; height: 100%; margin-top: 20px; float: left; } #panel { width: 150px; text-align: left; margin-top: 20px; float: left; } .dx-checkbox { margin-bottom: 10px; display: block; } .long-title h3 { font-weight: 200; font-size: 28px; text-align: center; margin-bottom: 20px; } </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/20.1.8/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/20.1.8/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"> </div> </div> </body> </html>

export const products = [{ name: 'Hummers', count: 41, active: true }, { name: 'Shovers', count: 32, active: true }, { name: 'Ladders', count: 13, active: true }, { name: 'Watering cans', count: 48, active: true }, { name: 'Screwdrivers', count: 24, active: true }, { name: 'Nail pullers', count: 8, active: true }, { name: 'Drills', count: 19, active: true }];

System.config({ transpiler: 'plugin-babel', meta: { '*.vue': { loader: 'vue-loader' }, }, 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@20.1', 'devextreme-vue': 'npm:devextreme-vue@20.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram@1.0.17', 'devexpress-gantt': 'npm:devexpress-gantt@1.0.10', 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, packages: { 'devextreme-vue': { main: 'index.js' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, }, babelOptions: { sourceMaps: false, stage0: true } });