/// <see cref="AppointmentDAL.GetAppointmentInDateRange(DateTime, DateTime)"/>
public List <AppointmentDTO> GetAppointmentsInDateRange(DateTime startDate, DateTime endDate)
{
if (startDate == null || endDate == null)
{
throw new ArgumentNullException("startDate and endDate cannot be null");
}
return(AppointmentDAL.GetAppointmentInDateRange(startDate, endDate.AddDays(1)));
}