Data Labels (Angular)

FlexChart's dataLabels property allows you to show labels next to each data point on the chart.

Learn about FlexChart | DataLabel Documentation | FlexChart API Reference

This example uses Angular.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import { Component, Inject, enableProdMode, AfterViewInit, NgModule, ViewChild } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjInputModule } from '@grapecity/wijmo.angular2.input'; import { WjChartModule } from '@grapecity/wijmo.angular2.chart'; import { DataService } from './app.data'; import { isArray } from '@grapecity/wijmo'; import { ComboBox } from '@grapecity/wijmo.input'; import { FlexChart, DataLabelRenderEventArgs, Palettes } from '@grapecity/wijmo.chart'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent implements AfterViewInit { data: any[]; comboData: any[]; palette: any; downloadsOnly: boolean; @ViewChild('theChart', { static: true }) theChart: FlexChart; // constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(); this.comboData = dataService.getComboData(); this.palette = this.getRandomPalette(); this.downloadsOnly = false; } // ngAfterViewInit() { this.theChart.dataLabel.rendering.addHandler(function(_: any, e: DataLabelRenderEventArgs) { if (this.downloadsOnly && e.hitTestInfo.series.binding != '2016') { e.cancel = true; // labels only for the "downloads" series } }, this); } // textChanged(s: ComboBox) { this.theChart.dataLabel.position = <any>s.text; } // getRandomPalette() { let palettes = Object.keys(Palettes).filter(prop => isArray(Palettes[prop])); let rand = Math.floor(Math.random() * palettes.length); // return Palettes[palettes[rand]]; } // lbClick(cb: HTMLInputElement) { let dl = this.theChart.dataLabel; dl.connectingLine = dl.border = cb.checked; } // doClick(cb: HTMLInputElement) { this.theChart.invalidate(); } } // @NgModule({ imports: [WjInputModule, WjChartModule, FormsModule, BrowserModule], declarations: [AppComponent], providers: [DataService], bootstrap: [AppComponent] }) export class AppModule { } // enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule);
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Data Labels</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/dist/zone.min.js"></script> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.js"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html>
<div class="container-fluid"> <div class="form-group"> <label for="labelPosition">Label Position: </label> <wj-combo-box #cb [itemsSource]="comboData" (textChanged)="textChanged(cb)" text="Top"></wj-combo-box><br /> <label for="linesAndBorders">Lines/Borders: </label> <input #lb id="linesAndBorders" type="checkbox" (click)="lbClick(lb)" /><br /> <label for="downloadsOnly">2016 Only: </label> <input #do id="downloadsOnly" type="checkbox" [(ngModel)]="downloadsOnly" (click)="doClick(do)" /> </div> <div class="form-group"> <wj-flex-chart #theChart [itemsSource]="data" bindingX="country" tooltipContent="" header="Country GDP" [palette]="palette" [options]="{ groupWidth : '90%' }"> <wj-flex-chart-series binding="2014" name="2014"></wj-flex-chart-series> <wj-flex-chart-series binding="2015" name="2015"></wj-flex-chart-series> <wj-flex-chart-series binding="2016" name="2016"></wj-flex-chart-series> <wj-flex-chart-data-label content="{value:n0,,}T" position="Top"></wj-flex-chart-data-label> </wj-flex-chart> </div> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { // https://en.wikipedia.org/wiki/List_of_IMF_ranked_countries_by_GDP getData() { return [ { country: 'United States', '2014': 17348075, '2015': 18036650, '2016': 18624450 }, { country: 'China', '2014': 10356508, '2015': 11181556, '2016': 11232110 }, { country: 'Japan', '2014': 4602367, '2015': 4124211, '2016': 4936540 }, { country: 'Germany', '2014': 3874437, '2015': 3365293, '2016': 3479230 }, { country: 'United Kingdom', '2014': 2950039, '2015': 2858482, '2016': 2629190 }, { country: 'France', '2014': 2833687, '2015': 2420163, '2016': 2466470 }, { country: 'India', '2014': 2051228, '2015': 2073002, '2016': 2263790 }, { country: 'Italy', '2014': 2147744, '2015': 1815759, '2016': 1850740 } ]; } // getComboData() { return 'None,Left,Top,Right,Bottom,Center'.split(','); } }
.wj-flexgrid { height: 150px; margin-top:10px; } .wj-flexchart { height: 300px; } .wj-data-label { font-size: 75%; opacity: .9; } label { width: 150px; text-align: right; } .wj-control { margin-bottom: 3px; }
(function (global) { System.config({ transpiler: 'ts', typescriptOptions: { tsconfig: true }, meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'core-js': 'npm:core-js/client/shim.min.js', 'zone': 'npm:zone.js/dist/zone.min.js', //'reflect-metadata': 'npm:reflect-metadata/Reflect.js', 'rxjs': 'npm:rxjs/bundles/rxjs.umd.min.js', //'rxjs': 'npm:rxjs', //'rxjs/operators': 'npm:rxjs/operators', '@angular/core': 'npm:@angular/core/bundles/core.umd.min.js', '@angular/common': 'npm:@angular/common/bundles/common.umd.min.js', '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.min.js', '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.min.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.min.js', '@angular/http': 'npm:@angular/http/bundles/http.umd.min.js', '@angular/common/http': 'npm:@angular/common/bundles/common-http.umd.min.js', '@angular/router': 'npm:@angular/router/bundles/router.umd.min.js', '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.min.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.chart.map': 'npm:@grapecity/wijmo.chart.map/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.transposedmultirow': 'npm:@grapecity/wijmo.grid.transposedmultirow/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.rest': 'npm:@grapecity/wijmo.rest/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.pdf.security': 'npm:@grapecity/wijmo.pdf.security/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', '@grapecity/wijmo.xlsx': 'npm:@grapecity/wijmo.xlsx/index.js', '@grapecity/wijmo.undo': 'npm:@grapecity/wijmo.undo/index.js', '@grapecity/wijmo.interop.grid': 'npm:@grapecity/wijmo.interop.grid/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.barcode': 'npm:@grapecity/wijmo.barcode/index.js', '@grapecity/wijmo.barcode.common': 'npm:@grapecity/wijmo.barcode.common/index.js', '@grapecity/wijmo.barcode.composite': 'npm:@grapecity/wijmo.barcode.composite/index.js', '@grapecity/wijmo.barcode.specialized': 'npm:@grapecity/wijmo.barcode.specialized/index.js', "@grapecity/wijmo.angular2.chart.analytics": "npm:@grapecity/wijmo.angular2.chart.analytics/index.js", "@grapecity/wijmo.angular2.chart.animation": "npm:@grapecity/wijmo.angular2.chart.animation/index.js", "@grapecity/wijmo.angular2.chart.annotation": "npm:@grapecity/wijmo.angular2.chart.annotation/index.js", "@grapecity/wijmo.angular2.chart.finance.analytics": "npm:@grapecity/wijmo.angular2.chart.finance.analytics/index.js", "@grapecity/wijmo.angular2.chart.finance": "npm:@grapecity/wijmo.angular2.chart.finance/index.js", "@grapecity/wijmo.angular2.chart.hierarchical": "npm:@grapecity/wijmo.angular2.chart.hierarchical/index.js", "@grapecity/wijmo.angular2.chart.interaction": "npm:@grapecity/wijmo.angular2.chart.interaction/index.js", "@grapecity/wijmo.angular2.chart.radar": "npm:@grapecity/wijmo.angular2.chart.radar/index.js", '@grapecity/wijmo.angular2.chart.map': 'npm:@grapecity/wijmo.angular2.chart.map/index.js', "@grapecity/wijmo.angular2.chart": "npm:@grapecity/wijmo.angular2.chart/index.js", "@grapecity/wijmo.angular2.core": "npm:@grapecity/wijmo.angular2.core/index.js", "@grapecity/wijmo.angular2.gauge": "npm:@grapecity/wijmo.angular2.gauge/index.js", "@grapecity/wijmo.angular2.grid.detail": "npm:@grapecity/wijmo.angular2.grid.detail/index.js", "@grapecity/wijmo.angular2.grid.filter": "npm:@grapecity/wijmo.angular2.grid.filter/index.js", "@grapecity/wijmo.angular2.grid.grouppanel": "npm:@grapecity/wijmo.angular2.grid.grouppanel/index.js", "@grapecity/wijmo.angular2.grid.search": "npm:@grapecity/wijmo.angular2.grid.search/index.js", "@grapecity/wijmo.angular2.grid.multirow": "npm:@grapecity/wijmo.angular2.grid.multirow/index.js", "@grapecity/wijmo.angular2.grid.sheet": "npm:@grapecity/wijmo.angular2.grid.sheet/index.js", '@grapecity/wijmo.angular2.grid.transposed': 'npm:@grapecity/wijmo.angular2.grid.transposed/index.js', '@grapecity/wijmo.angular2.grid.transposedmultirow': 'npm:@grapecity/wijmo.angular2.grid.transposedmultirow/index.js', "@grapecity/wijmo.angular2.grid": "npm:@grapecity/wijmo.angular2.grid/index.js", "@grapecity/wijmo.angular2.input": "npm:@grapecity/wijmo.angular2.input/index.js", "@grapecity/wijmo.angular2.olap": "npm:@grapecity/wijmo.angular2.olap/index.js", "@grapecity/wijmo.angular2.viewer": "npm:@grapecity/wijmo.angular2.viewer/index.js", "@grapecity/wijmo.angular2.nav": "npm:@grapecity/wijmo.angular2.nav/index.js", "@grapecity/wijmo.angular2.directivebase": "npm:@grapecity/wijmo.angular2.directivebase/index.js", '@grapecity/wijmo.angular2.barcode.common': 'npm:@grapecity/wijmo.angular2.barcode.common/index.js', '@grapecity/wijmo.angular2.barcode.composite': 'npm:@grapecity/wijmo.angular2.barcode.composite/index.js', '@grapecity/wijmo.angular2.barcode.specialized': 'npm:@grapecity/wijmo.angular2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'npm:jszip/dist/jszip.min.js', 'typescript': 'npm:typescript/lib/typescript.js', //'typescript': 'https://unpkg.com/typescript@3.2.2', 'ts': 'npm:plugin-typescript/lib/plugin.js', 'css': 'npm:systemjs-plugin-css/css.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'ts' }, rxjs: { defaultExtension: 'js' }, // 'rxjs': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/ajax': {main: 'index.js', defaultExtension: 'js' }, //'rxjs/operators': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/testing': {main: 'index.js', defaultExtension: 'js' }, // 'rxjs/webSocket': {main: 'index.js', defaultExtension: 'js' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);