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Charts

Multiple Point Selection

Documentation

This demo illustrates the use of multi-point selection within the Chart widget.

www.nytimes.com
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<template> <dx-chart id="chart" :data-source="medalStatistics" :rotated="true" point-selection-mode="multiple" title="Olympic Medals in 2008" @point-click="onPointClick" > <dx-common-series-settings argument-field="country" type="stackedbar" > <dx-selection-style> <dx-hatching direction="left"/> </dx-selection-style> </dx-common-series-settings> <dx-series v-for="medal in medalSources" :key="medal.value" :value-field="medal.value" :name="medal.name" :color="medal.color" /> <dx-legend vertical-alignment="bottom" horizontal-alignment="center" /> <dx-export :enabled="true"/> </dx-chart> </template> <script> import DxChart, { DxCommonSeriesSettings, DxSelectionStyle, DxHatching, DxSeries, DxLegend, DxExport } from 'devextreme-vue/chart'; import { medalSources, medalStatistics } from './data.js'; export default { components: { DxChart, DxCommonSeriesSettings, DxSelectionStyle, DxHatching, DxSeries, DxLegend, DxExport }, data() { return { medalSources, medalStatistics }; }, methods: { onPointClick({ target: point }) { if (point.isSelected()) { point.clearSelection(); } else { point.select(); } } } }; </script> <style> #chart { height: 440px; } </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="stylesheet" type="text/css" 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>
export const medalSources = [ { value: 'gold', name: 'Gold Medals', color: '#ffd700' }, { value: 'silver', name: 'Silver Medals', color: '#c0c0c0' }, { value: 'bronze', name: 'Bronze Medals', color: '#cd7f32' } ]; export const medalStatistics = [{ country: 'USA', gold: 36, silver: 38, bronze: 36 }, { country: 'China', gold: 51, silver: 21, bronze: 28 }, { country: 'Russia', gold: 23, silver: 21, bronze: 28 }, { country: 'Britain', gold: 19, silver: 13, bronze: 15 }, { country: 'Australia', gold: 14, silver: 15, bronze: 17 }, { country: 'Germany', gold: 16, silver: 10, bronze: 15 }];
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 } });