private async void GetAllNewEventData(object sender, AddNewEventFinall e)
        {
            _newEvent.GroupId = _groupId;
            await PostObjectByApi("events", _newEvent);

            Toast.MakeText(this, "New event added !", ToastLength.Short).Show();
            await UpdateEventList(_eventListView);
        }
 private async void UpdateEvent(object sender, AddNewEventFinall e)
 {
     await PutObjectByApi("events", new PutEventModel
     {
         EventId         = EventId,
         Title           = e.Event.Title,
         Description     = e.Event.Description,
         DateOfOccurance = e.Event.DateOfOccurance,
         Location        = e.Event.Location
     });
     await LoadEvent();
 }