Custom Cell Content

Dynamically customize the cell content of the timeline by showing event-related icons, visual indicators, and a quick add button directly in each cell.

This is achieved using the cellTemplate option, where event data in each cell is used to display icons based on the event, a badge showing total event hours, and a button to quickly add new events. The add event icon is dynamically added during onCellHoverIn. An event cap per cell is implemented by reading the event count from onCellHoverIn args and enforcing it in onEventCreate, blocking event creation by returning false. This approach helps visualize workload per day and enables quick actions, making scheduling more efficient and user-friendly.

In this demo, cells represent a day. Depending on the resolution, they can also stand for a week, month, or more, while remaining fully customizable. See this configuration demo to try out different timeline resolution settings.

Get started with this example

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Add workload badges, status icons, and a hover quick-add button to each Timeline cell — and cap events per cell.

Code

View code on GitHub 
import { CommonModule } from '@angular/common';
import { Component } from '@angular/core';
import { MbscCalendarCellData, MbscCalendarEvent, MbscEventcalendarView, MbscModule, Notifications, setOptions } from '@mobiscroll/angular';

setOptions({
  locale:  ,
  theme: ' ',
  themeVariant: ' '
});

@Component({
  selector: 'app-root', 
  templateUrl: './app.component.html',
  standalone: true,
  imports: [CommonModule, MbscModule],
  providers: [Notifications],
})
export class AppComponent {
  constructor(private notify: Notifications) {}
  Math = Math;

  iconMap: Record<string, string> = {
    Review: 'calendar',
    Demo: 'play',
    Kickoff: 'flag',
    Strategy: 'map',
    Collab: 'bubbles',
    Update: 'upload',
    Discussion: 'bubble',
    Planning: 'pencil',
    Retrospect: 'history',
    Onboard: 'user4',
  };
  titles = Object.keys(this.iconMap);

  myView: MbscEventcalendarView = {
    timeline: {
      type: 'month',
      resolutionHorizontal: 'day',
      startDay: 1,
      endDay: 5,
      eventDisplay: 'fill',
    },
  };

  myResources = [
    { id: 1, name: 'Resource A' },
    { id: 2, name: 'Resource B' },
    { id: 3, name: 'Resource C' },
    { id: 4, name: 'Resource D' },
  ];

  myEvents: MbscCalendarEvent[] = [
    {
      id: 1,
      resource: 1,
      title: 'Review',
      start: '2026-11-02T00:00',
      end: '2026-11-02T02:00',
    },
    {
      id: 2,
      resource: 1,
      title: 'Demo',
      start: '2026-11-02T00:00',
      end: '2026-11-02T02:00',
    },
    {
      id: 3,
      resource: 1,
      title: 'Kickoff',
      start: '2026-11-02T00:00',
      end: '2026-11-02T02:00',
    },
    {
      id: 4,
      resource: 4,
      title: 'Strategy',
      start: '2026-11-02T00:00',
      end: '2026-11-02T02:00',
    },
    {
      id: 5,
      resource: 4,
      title: 'Collab',
      start: '2026-11-02T00:00',
      end: '2026-11-02T02:00',
    },
    // Showing partial data. Download full source.
  ];

  handleAddClick(ev: MouseEvent, cell: MbscCalendarCellData) {
    ev.stopPropagation();
    const count = cell.events.length;

    if (count >= 4) {
      this.notify.toast({ message: 'Task limit reached' });
      return;
    }
    this.myEvents = [
      ...this.myEvents,
      {
        title: this.titles[Math.floor(Math.random() * this.titles.length)],
        start: cell.date,
        end: new Date(cell.date.getTime() + 2 * 3600000),
        resource: cell.resource.id,
      },
    ];
  }

  getHours(events: MbscCalendarEvent[] = []): number {
    const total = events.reduce((s, ev) => {
      const st = new Date(ev.start as Date).getTime();
      const en = new Date(ev.end as Date).getTime();
      return s + (en - st) / 36e5;
    }, 0);
    return Math.round(total);
  }

  getBadgeClass(events: MbscCalendarEvent[] = []): string {
    const hours = this.getHours(events);
    const classMap: Record<number, string> = { 2: 'light', 4: 'medium', 6: 'semi', 8: 'full' };
    return 'mds-timeline-cell-content-badge-' + (classMap[hours] || 'default');
  }

  getIcons(events: MbscCalendarEvent[] = []): string[] {
    const titles = new Set();
    return events.reduce<string[]>((icons, ev) => {
      const name = this.iconMap[ev.title!];
      if (name && !titles.has(ev.title)) {
        titles.add(ev.title);
        icons.push(name);
      }
      return icons;
    }, []);
  }

  extendDefaultEvent = (args: any) => ({
    title: this.titles[Math.floor(Math.random() * this.titles.length)],
    end: new Date(args.start.getTime() + 2 * 3600000),
  });
}

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