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The Chart and PieChart widgets support different modes of series hovering. This demo shows the "includePoints" mode, when all the points of a hovered series change their display style. In addition, you can specify a custom hover mode for legend items. Here, the "excludePoints" mode is used, when only the series line changes its display style leaving the points as they were.

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<dx-chart id="chart" [dataSource]="grossProductData" title="Great Lakes Gross State Product"> <dxi-series valueField="year2004" name="2004"></dxi-series> <dxi-series valueField="year2001" name="2001"></dxi-series> <dxi-series valueField="year1998" name="1998"></dxi-series> <dxo-common-series-settings argumentField="state" type="spline" hoverMode="includePoints"> <dxo-point hoverMode="allArgumentPoints"></dxo-point> </dxo-common-series-settings> <dxo-legend verticalAlignment="bottom" horizontalAlignment="center" hoverMode="excludePoints"> </dxo-legend> <dxo-export [enabled]="true"></dxo-export> </dx-chart>

import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxChartModule } from 'devextreme-angular'; import { Service, GrossProduct } from './app.service'; if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'] }) export class AppComponent { grossProductData: GrossProduct[]; constructor(service: Service) { this.grossProductData = service.getGrossProductData(); } } @NgModule({ imports: [ BrowserModule, DxChartModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);

/deep/ #chart { height: 440px; }

import { Injectable } from '@angular/core'; export class GrossProduct { state: string; year1998: number; year2001: number; year2004: number; } let grossProductData: GrossProduct[] = [{ state: "Illinois", year1998: 423.721, year2001: 476.851, year2004: 528.904 }, { state: "Indiana", year1998: 178.719, year2001: 195.769, year2004: 227.271 }, { state: "Michigan", year1998: 308.845, year2001: 335.793, year2004: 372.576 }, { state: "Ohio", year1998: 348.555, year2001: 374.771, year2004: 418.258 }, { state: "Wisconsin", year1998: 160.274, year2001: 182.373, year2004: 211.727 }]; @Injectable() export class Service { getGrossProductData(): GrossProduct[] { return grossProductData; } }

// In real applications, you should not transpile code in the browser. You can see how to create your own application with Angular 2 and DevExtreme here: // https://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@7.0.6/lib/plugin.js', 'typescript': 'npm:typescript@2.2.2/lib/typescript.js', '@angular/core': 'npm:@angular/core@4.1.0/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@4.1.0/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@4.1.0/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@4.1.0/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@4.1.0/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@4.1.0/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@4.1.0/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@4.1.0/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.3.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme': 'npm:devextreme@17.1', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'devextreme-angular': 'npm:devextreme-angular@17.1' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' } } });

<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <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/17.1.4/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.4/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.4/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.6.25/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script> <script src="config.js"></script> <script> System.import('app').catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>