/// <summary>
/// This method retrieves the Tlv from a byte stream object.
/// </summary>
/// <param name="stm">Byte stream</param>
public override void GetFromStream(SmppReader stm)
{
hasValue_ = true;
Tag = stm.ReadShort();
int length = stm.ReadShort();
if (length != 0)
{
throw new TlvException("Invalid length encountered for alert_on_message_delivery (was " + length.ToString() + ", should be zero.)");
}
}