Demos
Chart(Angular)
Chart Features
Series Picker

Series Picker (Angular)

You can easily implement a series-picker UI using FlexChart's series property, a ListBox control, and Wijmo's showPopup and hidePopup methods.

For example, the chart below starts with an auto-generated set of series. Click the gear icon at the top-left corner to show a ListBox where you can select the series you want to display.

Note that you can achieve a similar result by setting the chart's legendToggle property to true. Once you do that, the legend itself acts as a series picker: clicking any series name in the legend toggles its visibility.

Learn about FlexChart | FlexChart API Reference

This example uses Angular.

JavaScript
Angular
Vue
React
app.component.ts
index.html
app.component.html
app.data.ts
styles.css
Copy to CodeMine
import 'bootstrap.css';
import '@mescius/wijmo.styles/wijmo.css';
import './styles.css';
//
import '@angular/compiler';
import { Component, Inject, ViewChild, enableProdMode, AfterViewInit, ɵresolveComponentResources } from '@angular/core';

import { BrowserModule, bootstrapApplication } from '@angular/platform-browser';
import { FormsModule } from '@angular/forms';
import { WjInputModule } from '@mescius/wijmo.angular2.input';
import { WjChartModule } from '@mescius/wijmo.angular2.chart';
import { DataService } from './app.data';
import { isArray, isNumber, showPopup, hidePopup, toHeaderCase } from '@mescius/wijmo';
import { ListBox } from '@mescius/wijmo.input';
import { FlexChart, Palettes, Series, SeriesVisibility } from '@mescius/wijmo.chart';
//
@Component({
  standalone: true,
  providers: [DataService],
  imports: [FormsModule, WjInputModule, WjChartModule, BrowserModule],
  selector: 'app-component',
  templateUrl: 'src/app.component.html',
})
export class AppComponent implements AfterViewInit {
  data: any[];
  palette: any;
  @ViewChild('theChart', { static: true }) theChart: FlexChart;
  @ViewChild('theSeriesPicker', { static: true }) theSeriesPicker: ListBox;
  //
  constructor(@Inject(DataService) private dataService: DataService) {
    this.data = dataService.getData();
    this.palette = this.getRandomPalette();
  }
  //
  ngAfterViewInit() {
    // auto-generate series
    let item = this.data[0];
    for (let k in item) {
      if (isNumber(item[k])) {
        let series = new Series();
        series.binding = k;
        series.name = toHeaderCase(k);
        series['visible'] = true; // add 'visible' property for binding
        this.theChart.series.push(series);
      }
    }
  }
  //
  getRandomPalette() {
    let palettes = Object.keys(Palettes).filter((prop) => isArray(Palettes[prop]));
    let rand = Math.floor(Math.random() * palettes.length);
    //
    return Palettes[palettes[rand]];
  }
  //
  pickerClick(e: Event) {
    showPopup(this.theSeriesPicker.hostElement, e.target, false, true, false);
    this.theSeriesPicker.focus();
    e.preventDefault();
  }
  //
  lostFocus() {
    hidePopup(this.theSeriesPicker.hostElement);
  }
  //
  checkedItemsChanged(s: ListBox) {
    // map extra 'visible' property to 'Series.visibility' values
    this.theChart.series.forEach((series: Series) => {
      series.visibility = s.checkedItems.indexOf(series) > -1 ? SeriesVisibility.Visible : SeriesVisibility.Hidden;
    });
  }
}
//

//
enableProdMode();

// Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings.
ɵresolveComponentResources(fetch).then(() => {
  // Bootstrap application
  bootstrapApplication(AppComponent).catch((err) => console.error(err));
});
import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; // import '@angular/compiler'; import { Component, Inject, ViewChild, enableProdMode, AfterViewInit, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { FormsModule } from '@angular/forms'; import { WjInputModule } from '@mescius/wijmo.angular2.input'; import { WjChartModule } from '@mescius/wijmo.angular2.chart'; import { DataService } from './app.data'; import { isArray, isNumber, showPopup, hidePopup, toHeaderCase } from '@mescius/wijmo'; import { ListBox } from '@mescius/wijmo.input'; import { FlexChart, Palettes, Series, SeriesVisibility } from '@mescius/wijmo.chart'; // @Component({ standalone: true, providers: [DataService], imports: [FormsModule, WjInputModule, WjChartModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html', }) export class AppComponent implements AfterViewInit { data: any[]; palette: any; @ViewChild('theChart', { static: true }) theChart: FlexChart; @ViewChild('theSeriesPicker', { static: true }) theSeriesPicker: ListBox; // constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(); this.palette = this.getRandomPalette(); } // ngAfterViewInit() { // auto-generate series let item = this.data[0]; for (let k in item) { if (isNumber(item[k])) { let series = new Series(); series.binding = k; series.name = toHeaderCase(k); series['visible'] = true; // add 'visible' property for binding this.theChart.series.push(series); } } } // getRandomPalette() { let palettes = Object.keys(Palettes).filter((prop) => isArray(Palettes[prop])); let rand = Math.floor(Math.random() * palettes.length); // return Palettes[palettes[rand]]; } // pickerClick(e: Event) { showPopup(this.theSeriesPicker.hostElement, e.target, false, true, false); this.theSeriesPicker.focus(); e.preventDefault(); } // lostFocus() { hidePopup(this.theSeriesPicker.hostElement); } // checkedItemsChanged(s: ListBox) { // map extra 'visible' property to 'Series.visibility' values this.theChart.series.forEach((series: Series) => { series.visibility = s.checkedItems.indexOf(series) > -1 ? SeriesVisibility.Visible : SeriesVisibility.Hidden; }); } } // // enableProdMode(); // Resolve resources (templateUrl, styleUrls etc), After resolution all URLs have been converted into `template` strings. ɵresolveComponentResources(fetch).then(() => { // Bootstrap application bootstrapApplication(AppComponent).catch((err) => console.error(err)); });
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexChart Series Picker</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/fesm2015/zone.min.js"></script> <!-- SystemJS --> <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.21.5/system.src.js" integrity="sha512-skZbMyvYdNoZfLmiGn5ii6KmklM82rYX2uWctBhzaXPxJgiv4XBwJnFGr5k8s+6tE1pcR1nuTKghozJHyzMcoA==" crossorigin="anonymous"></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"> <div style="position:relative"> <wj-flex-chart #theChart [itemsSource]="data" bindingX="country" [palette]="palette"></wj-flex-chart> <div id="pickerButton" (click)="pickerClick($event)"> <span class="column-picker-icon glyphicon glyphicon-cog"></span> </div> </div> <div style="display:none"> <wj-list-box #theSeriesPicker [itemsSource]="this.theChart.series" checkedMemberPath="visible" displayMemberPath="name" (lostFocus)="lostFocus()" (checkedItemsChanged)="checkedItemsChanged(theSeriesPicker)"></wj-list-box> </div> </div> </div>
import { Injectable } from '@angular/core'; // @Injectable() export class DataService { getData() { let countries = 'US,Canada,Mexico,Japan,Korea,China,Germany,France,UK,Italy,Greece'.split(','), data = []; // for (let i = 0; i < countries.length; i++) { data.push({ country: countries[i], leads: Math.random() * 100000, qualified: Math.random() * 50000, analysis: Math.random() * 5000, quotes: Math.random() * 4000, negotiations: Math.random() * 1000, sales: Math.random() * 800 }); } // return data; } }
.wj-flexchart { height: 300px; margin: 10px 0; } .series-picker { columns: 2; padding: 12px; margin-left: 12px; margin-top: 26px; box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23); } #pickerButton { cursor: pointer; color: #FF8754; padding: 6px; position: absolute; left: 0; top: 0 } body { margin-bottom: 20px; }
(function (global) { SystemJS.config({ transpiler: './plugin-typescript.js', typescriptOptions: { "target": "ES2022", "module": "system", "emitDecoratorMetadata": true, "experimentalDecorators": true, }, baseURL: 'node_modules/', meta: { 'typescript': { "exports": "ts" }, '*.css': { loader: 'systemjs-plugin-css' }, '*.mjs': { format: 'esm' }, }, paths: { // paths serve as alias 'npm:': '' }, packageConfigPaths: [ '/node_modules/*/package.json', "/node_modules/@angular/*/package.json", "/node_modules/@mescius/*/package.json" ], map: { 'core-js': 'https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js', 'typescript': 'https://cdnjs.cloudflare.com/ajax/libs/typescript/5.2.2/typescript.min.js', "rxjs": "https://cdnjs.cloudflare.com/ajax/libs/rxjs/7.8.1/rxjs.umd.min.js", 'systemjs-plugin-css': 'https://cdn.jsdelivr.net/npm/systemjs-plugin-css@0.1.37/css.js', '@mescius/wijmo': 'npm:@mescius/wijmo/index.js', '@mescius/wijmo.input': 'npm:@mescius/wijmo.input/index.js', 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'npm:@mescius/wijmo.angular2.barcode.specialized/index.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'jszip': 'https://cdnjs.cloudflare.com/ajax/libs/jszip/3.10.1/jszip.min.js', '@angular/core': 'npm:@angular/core/fesm2022/core.mjs', '@angular/core/primitives/signals': 'npm:@angular/core/fesm2022/primitives/signals.mjs', '@angular/core/primitives/event-dispatch': 'npm:@angular/core/fesm2022/primitives/event-dispatch.mjs', '@angular/common': 'npm:@angular/common/fesm2022/common.mjs', '@angular/common/http': 'npm:@angular/common/fesm2022/http.mjs', '@angular/compiler': 'npm:@angular/compiler/fesm2022/compiler.mjs', '@angular/platform-browser': 'npm:@angular/platform-browser/fesm2022/platform-browser.mjs', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/fesm2022/platform-browser-dynamic.mjs', '@angular/http': 'npm:@angular/http/fesm2022/http.mjs', '@angular/router': 'npm:@angular/router/fesm2022/router.mjs', '@angular/forms': 'npm:@angular/forms/fesm2022/forms.mjs', }, // packages tells the System loader how to load when no filename and/or no extension packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);