Why is the dateclick event in PrimeNG's FullCalendar not being emitted when clicking on a date? What is the best way to handle click events on specific dates within the calendar?

I am new to using Angular and PrimeNG, and I am facing challenges while trying to implement the FullCalendar component. The specific component I am referring to can be found here:

The issue arises when I attempt to trigger an event when a user clicks on a particular date within the calendar (similar to the example provided in the link above). My goal is to execute a callback method upon clicking a day square on the Calendar.

I understand that this PrimeNG component is built upon https://fullcalendar.io/

Here is what I have tried so far:

1) This is the content of my fullcalendard.component.html page:

fullcalendar works!

<div class="content-section implementation">
  <p-fullCalendar #calendar (dateClick)="handleDateClick($event)"
                  [events]="events"
                  [options]="options">
  </p-fullCalendar>
</div>

In this code snippet, you can see that I have added:

(dateClick)="handleDateClick($event)"

To handle the event of clicking a date on the rendered calendar.

2) Moving on to the "backend" logic, defined in my fullcalendar.component.ts file:

import { Component, OnInit } from '@angular/core';
import { EventService } from '../event.service';
import dayGridPlugin from '@fullcalendar/daygrid';
import timeGridPlugin from '@fullcalendar/timegrid';
import listPlugin from '@fullcalendar/list';
import interactionPlugin from '@fullcalendar/interaction';

@Component({
  selector: 'app-fullcalendar',
  templateUrl: './fullcalendar.component.html',
  styleUrls: ['./fullcalendar.component.css']
})
export class FullcalendarComponent implements OnInit {

  events: any[];
  options: any;
  header: any;

  constructor(private eventService: EventService) {}

  ngOnInit() {
    this.eventService.getEvents().then(events => {this.events = events;});

    this.options = {
        plugins:[ dayGridPlugin, timeGridPlugin, interactionPlugin, listPlugin ],
        defaultDate: '2017-02-01',
        header: {
            left: 'prev,next',
            center: 'title',
            right: 'dayGridMonth,timeGridWeek,timeGridDay'
        },
        editable: true
    };
  }

  handleDateClick(dateClickEvent) {
    console.log("DATE CLICKED !!!");
  }

}

In this part, you can see that I imported various plugins for this component as instructed in the official documentation. I have also created the handleDateClick() method to manage the click event on a date, and included the interactionPlugin in the calendarPlugins array used by my component as suggested in this resource: dateClick not emitted in fullcalendar angular

Although my application compiles without errors and displays the calendar on the page, nothing happens when I click on a specific date. Why is this happening? What could be wrong? What am I overlooking? How can I rectify my code to successfully handle this event?

Answer №1

According to the documentation provided by PrimeNG fullcalendar, callbacks for the FullCalendar can be defined using the options property.

The FullCalendar callbacks are assigned through the options property.

Here are two suggested approaches:

Approach 1

this.options = {
  plugins:[ dayGridPlugin, timeGridPlugin, interactionPlugin, listPlugin ],
  defaultDate: '2017-02-01',
  header: {
      left: 'prev,next',
      center: 'title',
      right: 'dayGridMonth,timeGridWeek,timeGridDay'
  },
  editable: true,
  dateClick: (dateClickEvent) => {         // <-- include the callback function within `options`
    console.log("DATE CLICKED !!!");
  }
};

Approach 2

To access member variables and functions within the callback function, it is recommended to bind the callback function with the argument this. Note that this approach may not work as expected and has not been fully tested.

ngOnInit() {
  this.options = {
    plugins:[ dayGridPlugin, timeGridPlugin, interactionPlugin, listPlugin ],
    defaultDate: '2017-02-01',
    header: {
        left: 'prev,next',
        center: 'title',
        right: 'dayGridMonth,timeGridWeek,timeGridDay'
    },
    editable: true,
    dateClick: this.handleDateClick.bind(this)     // <-- binding the callback function with `this` argument
  };
}

handleDateClick(dateClickEvent) {
  console.log("DATE CLICKED !!!");

  // accessing member variables and functions using `this` keyword
}

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