DevExtreme v24.1 is now available.

Explore our newest features/capabilities and share your thoughts with us.

Your search did not match any results.

Client-Side Data Processing

The Chart component can get data from a remote storage and process it on the client side. To implement this functionality, assign a DataSource object to the Chart dataSource property.

In the DataSource, implement a CustomStore. Switch the CustomStore to the raw loadMode and load all data from the server in the load function as shown in the demo. Set the paginate property to false to prevent data from partitioning. You can also apply filter to the received values. In this demo, select different values of the drop-down menu under the chart to apply different filters.

www.kaggle.com
Backend API
<template> <div id="chart-demo"> <DxChart :data-source="monthWeather" :customize-point="customizePoint" title="Temperature in Seattle: October 2017" > <DxSize :height="420"/> <DxValueAxis> <DxLabel :customize-text="customizeLabelText" :visible="true" /> </DxValueAxis> <DxSeries argument-field="day" value-field="t" type="bar" /> <DxLegend :visible="false"/> <DxExport :enabled="true"/> <DxLoadingIndicator :enabled="true"/> </DxChart> <div class="action"> <div class="label">Choose a temperature threshold, &deg;C: </div> <DxSelectBox id="choose-temperature" :data-source="temperature" :input-attr="{ 'aria-label': 'Temperature' }" :value="2" :on-value-changed="changeTemperature" /> </div> </div> </template> <script setup lang="ts"> import DxChart, { DxValueAxis, DxLabel, DxLegend, DxExport, DxSeries, DxSize, DxLoadingIndicator, } from 'devextreme-vue/chart'; import DxSelectBox from 'devextreme-vue/select-box'; import DataSource from 'devextreme/data/data_source'; import CustomStore from 'devextreme/data/custom_store'; const temperature = [2, 4, 6, 8, 9, 10, 11]; const palette = ['#c3a2cc', '#b7b5e0', '#e48cba']; let paletteIndex = 0; const monthWeather = new DataSource({ store: new CustomStore({ load: () => fetch('../../../../data/monthWeather.json') .then((e) => e.json()) .catch(() => { throw new Error('Data Loading Error'); }), loadMode: 'raw', }), filter: ['t', '>', '2'], paginate: false, }); const customizeLabelText = ({ valueText }) => `${valueText}${'&#176C'}`; function changeTemperature({ value }) { monthWeather.filter(['t', '>', value]); monthWeather.load(); } function customizePoint() { const color = palette[paletteIndex]; paletteIndex = paletteIndex === 2 ? 0 : paletteIndex + 1; return { color }; } </script> <style> .action { width: 330px; margin-top: 20px; display: flex; align-items: center; justify-content: space-between; } .action .dx-selectbox { width: 90px; } </style>
window.exports = window.exports || {}; window.config = { transpiler: 'plugin-babel', meta: { '*.vue': { loader: 'vue-loader', }, '*.ts': { loader: 'demo-ts-loader', }, '*.svg': { loader: 'svg-loader', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, }, paths: { 'root:': '../../../../', 'npm:': 'https://unpkg.com/', }, map: { 'vue': 'npm:vue@3.2.47/dist/vue.esm-browser.js', 'vue-loader': 'npm:dx-systemjs-vue-browser@1.1.1/index.js', 'demo-ts-loader': 'root:utils/demo-ts-loader.js', 'svg-loader': 'root:utils/svg-loader.js', 'mitt': 'npm:mitt/dist/mitt.umd.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@24.1.3/cjs', 'devextreme-vue': 'npm:devextreme-vue@24.1.3/cjs', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.8/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13', 'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', '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', // Prettier 'prettier/standalone': 'npm:prettier@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js', }, packages: { 'devextreme-vue': { main: 'index.js', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@3.0.13/inferno/package.json', ], babelOptions: { sourceMaps: false, stage0: true, }, }; System.config(window.config);
import { createApp } from 'vue'; import App from './App.vue'; createApp(App).mount('#app');
<!DOCTYPE html> <html lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.3/css/dx.light.css" /> <script src="https://unpkg.com/typescript@4.9.5/lib/typescript.js"></script> <script type="module"> import * as vueCompilerSFC from "https://unpkg.com/@vue/compiler-sfc@3.4.16/dist/compiler-sfc.esm-browser.js"; window.vueCompilerSFC = vueCompilerSFC; </script> <script src="https://unpkg.com/core-js@2.6.12/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.ts"); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"> </div> </div> </body> </html>
[ { "day": "1", "t": 11 }, { "day": "2", "t": 7 }, { "day": "3", "t": 6 }, { "day": "4", "t": 8 }, { "day": "5", "t": 7 }, { "day": "6", "t": 7 }, { "day": "7", "t": 11 }, { "day": "8", "t": 9 }, { "day": "9", "t": 5 }, { "day": "10", "t": 8 }, { "day": "11", "t": 6 }, { "day": "12", "t": 9 }, { "day": "13", "t": 8 }, { "day": "14", "t": 6 }, { "day": "15", "t": 6 }, { "day": "16", "t": 6 }, { "day": "17", "t": 10 }, { "day": "18", "t": 9 }, { "day": "19", "t": 12 }, { "day": "20", "t": 9 }, { "day": "21", "t": 8 }, { "day": "22", "t": 13 }, { "day": "23", "t": 9 }, { "day": "24", "t": 7 }, { "day": "25", "t": 6 }, { "day": "26", "t": 11 }, { "day": "27", "t": 8 }, { "day": "28", "t": 7 }, { "day": "29", "t": 9 }, { "day": "30", "t": 7 }, { "day": "31", "t": 3 } ]

Once you load the data, specify the series type and its nested options: argumentField and valueField, so the component can determine which object fields in the data source indicate Chart arguments and values.