Я пытаюсь отобразить встречи по неделям или месяцам, но не могу (C #)

Question

Просмотр данных показывает встречи по неделям, даже если я отмечаю переключатель с месяцем

Dictionary<int, Hashtable> parsedAppointments = new Dictionary<int, Hashtable>();
// Adjusts appointments that will end up in calendar based on if the Week or Month view is chosen.
foreach (var appointment in appointments)
{
    DateTime startTime = DateTime.Parse(appointment.Value["start"].ToString());
    DateTime endTime = DateTime.Parse(appointment.Value["end"].ToString());
    DateTime today = DateTime.UtcNow;

    if (weekView)
    {
        DateTime sunday = today.AddDays(-(int)today.DayOfWeek);
        DateTime saturday = today.AddDays(-(int)today.DayOfWeek + (int)DayOfWeek.Saturday);

        if (startTime >= sunday && endTime < saturday)
        {
            // only include the apps that get here
            parsedAppointments.Add(appointment.Key, appointment.Value);
        }
    }
    else
    {
        DateTime firstDayOfMonth = new DateTime(today.Year, today.Month, 1);
        DateTime lastDayOfMonth = firstDayOfMonth.AddMonths(1).AddDays(-1);
        if (startTime >= firstDayOfMonth && endTime < lastDayOfMonth)
        {
            //  only include apps that get here
            parsedAppointments.Add(appointment.Key, appointment.Value);
        }
    }
}