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Bar Gauge

Tooltip and Legend

Documentation

This demo shows how to enable and customize tooltips in the the BarGauge widget. A tooltip is a small pop-up rectangle that displays the value of the bar that is currently hovered over. To enable the tooltips, the enabled option is set to true. The text displayed by the tooltips is customized using the customizeText option.

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<template> <div> <dx-bar-gauge id="gauge" :start-value="0" :end-value="200" :values="values" > <dx-label :visible="false" /> <dx-tooltip :enabled="true" :customize-tooltip="customizeTooltip" /> <dx-export :enabled="true" /> <dx-title text="Average Speed by Racer" > <dx-font :size="28" /> </dx-title> <dx-legend :visible="true" :customize-text="customizeText" vertical-alignment="bottom" horizontal-alignment="center" /> </dx-bar-gauge> </div> </template> <script> import { DxBarGauge, DxLabel, DxTooltip, DxExport, DxTitle, DxFont, DxLegend } from 'devextreme-vue/bar-gauge'; export default { components: { DxBarGauge, DxLabel, DxTooltip, DxExport, DxTitle, DxFont, DxLegend }, data() { return { values: [121.4, 135.4, 115.9, 141.1, 127.5] }; }, methods: { getText(item, text) { return `Racer ${(item.index + 1)} - ${text} km/h`; }, customizeTooltip(arg) { return { text: this.getText(arg, arg.valueText) }; }, customizeText(arg) { return this.getText(arg.item, arg.text); } } }; </script> <style scoped> #gauge { height: 440px; width: 100%; } </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/19.2.4/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/19.2.4/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>
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, map: { vue: 'npm:vue@2.5.16/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', '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 } });