private void WriteEffectivePeriod()
{
// Manual ASN.1/BER encoding
EncodeBuffer b = comm.GetEncodeBuffer(0);
ASN1.encode_opening_tag(b, 3);
DateTime dt;
if (TxtStartDate.Text != "Always")
{
dt = Convert.ToDateTime(TxtStartDate.Text);
}
else
{
dt = new DateTime(0);
}
ASN1.encode_application_date(b, dt);
if (TxtEndDate.Text != "Always")
{
dt = Convert.ToDateTime(TxtEndDate.Text);
}
else
{
dt = new DateTime(0);
}
ASN1.encode_application_date(b, dt);
ASN1.encode_closing_tag(b, 3);
Array.Resize <byte>(ref b.buffer, b.offset);
byte[] InOutBuffer = b.buffer;
comm.RawEncodedDecodedPropertyConfirmedRequest(adr, schedule_id, BacnetPropertyIds.PROP_EFFECTIVE_PERIOD, BacnetConfirmedServices.SERVICE_CONFIRMED_WRITE_PROPERTY, ref InOutBuffer);
}