Angular Fullcalendar Troubleshooting: Events Not Refreshing

Introduction

In the world of web development, Angular has become a popular framework for building dynamic and interactive applications. One of the key features that developers often integrate into their Angular projects is the Fullcalendar library. However, there may be instances when you encounter issues with events not refreshing properly in the UI. In this blog post, we will explore the common problem of events not refreshing in Angular Fullcalendar and discuss possible solutions.

Understanding the Issue

When using Fullcalendar with Angular, you might come across a situation where even though you have valid events added to the events field, they do not appear in the user interface (UI). However, hard-coded events are displayed correctly. As a beginner in Angular, it’s important to consider that the error might not be directly related to Fullcalendar itself.

Examining the Code

Let’s take a closer look at a sample code snippet from an Angular component utilizing Fullcalendar:

codeexport class CalendarComponent {
  constructor() {}

  events: EventInput[] = [];

  calendarOptions: CalendarOptions = {   
    events: this.events,
    initialView: 'timeGridWeek',
    initialDate: Date.now(),
    locale: 'de',
    nowIndicator: true,
    themeSystem: 'bootstrap',
  };
  
  async onAddEvent() {
    const modalRef = this.modalService.open(NewEventComponent);
    const newShift: Shift = await modalRef.result;
    if (!newShift) return;
    this.events.push(newShift);
  }
}

Identifying the Solution

Upon further investigation, it becomes evident that resetting the events and calendarOptions.events resolves the issue. It seems that Angular fails to detect the change automatically. To ensure that the events are refreshed correctly, you can follow the correct approach, as shown below:

codethis.events = [newShift];
this.calendarOptions.events = this.events;

Conclusion

In this blog post, we discussed a common issue faced by developers when using Angular Fullcalendar – events not refreshing in the UI. We explored a sample code snippet and identified the solution by resetting the events and calendarOptions.events properties. By following this approach, you can ensure that the events are properly updated and displayed in the Angular Fullcalendar component.

Remember, troubleshooting issues like these are part of the development journey, and with the right insights, you can overcome them and continue building amazing applications with Angular and Fullcalendar.