GanttRepeat (Angular)

Gantt charts illustrate project schedules. They show the start and finish dates of each task and typically add information such as the completion state of each task and dependencies between tasks.

This sample shows how you can use the FlexChart to create a Gantt chart with repeating tasks.

It does this by adding data items with the same (numeric) "X" value.

The Y axis has an itemFormatter that replaces the bound X values (index) with the task names.

Learn about FlexChart | FlexChart API Reference

This example uses Angular.

import 'bootstrap.css'; import '@mescius/wijmo.styles/wijmo.css'; import './styles.css'; import '@angular/compiler'; import { Component, Inject, enableProdMode, ɵresolveComponentResources } from '@angular/core'; import { BrowserModule, bootstrapApplication } from '@angular/platform-browser'; import { WjChartModule } from '@mescius/wijmo.angular2.chart'; import { DataService, TTask } from './app.data'; import { HitTestInfo } from '@mescius/wijmo.chart'; import { format } from '@mescius/wijmo'; @Component({ standalone: true, providers: [DataService], imports: [WjChartModule, BrowserModule], selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data: TTask[]; formatter = this.axisLabelFormatter.bind(this); constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(); } // render task name instead of index on y axis axisLabelFormatter(engine: any, label: any) { var data = this.data; for (var i = 0; i < data.length; i++) { var item = data[i]; if (item.index == label.val) { label.text = item.name; break; } } return label; } // show task name and duraction in tooltip getTooltipContent(ht: HitTestInfo): string { var str = format('<b>{name}</b>:<br/>{start:d} - {end:d}', { name: ht.item.name, start: ht.item.start, end: ht.item.end }); return str; } } 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 Gantt Repeat</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"> <wj-flex-chart [itemsSource]="data" chartType="Bar" bindingX="index" plotMargin="auto auto auto 180" [tooltipContent]="getTooltipContent"> <wj-flex-chart-series binding="start,end"> </wj-flex-chart-series> <wj-flex-chart-axis wjProperty="axisY" [majorGrid]="false" [minorGrid]="true" [reversed]="true" [itemFormatter]="formatter"> </wj-flex-chart-axis> </wj-flex-chart> </div>
import { DateTime } from '@mescius/wijmo'; import { Injectable } from '@angular/core'; export type TTask = { index: number; name: string; start: Date; end: Date; }; @Injectable() export class DataService { getData(): TTask[] { let data = []; let date = new Date(); // add some regular tasks for (let i = 0; i < 3; i++) { let low = i + Math.ceil(Math.random() * 10); let high = low + Math.ceil(Math.random() * 10); data.push({ index: i, name: 'Regular Task ' + (i + 1), start: new Date(date.getTime() + low * 3600 * 24 * 1000), end: new Date(date.getTime() + high * 3600 * 24 * 1000) }); } // add a repeating task (same "index" value) let dt = data[0].start; for (let i = 0; i < 5; i++) { data.push({ index: 3, name: 'First Repeating Task', start: dt, end: DateTime.addDays(dt, 4) }); dt = DateTime.addDays(dt, 7); } // add another repeating task dt = DateTime.addDays(data[0].start, 2); for (let i = 0; i < 5; i++) { data.push({ index: 4, name: 'Second Repeating Task', start: dt, end: DateTime.addDays(dt, 5) }); dt = DateTime.addDays(dt, 7); } // done return data; } }
body { margin-bottom: 24pt; }
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packages: { "./src": { defaultExtension: 'ts' }, "node_modules": { defaultExtension: 'js' }, wijmo: { defaultExtension: 'js', } } }); })(this);