private void OnEditRecord(TrackedDayRecordViewModel recordViewModel)
        {
            var context = (UserViewModel)BindingContext;

            TrackerService.EditRecord(Mapper.Map <TrackedDayRecordModel>(recordViewModel), context.SelectedDate);
            var newContext = Mapper.Map <UserViewModel>(App.User);

            newContext.SelectedDate = context.SelectedDate;
            BindingContext          = newContext;
        }