protected void SeekSink(System.UInt32 InstanceID, DvAVTransport.Enum_A_ARG_TYPE_SeekMode Unit, System.String Target)
{
if (ID_Table.ContainsKey(InstanceID) == false)
{
throw(new UPnPCustomException(802, InstanceID.ToString() + " is not a valid InstanceID"));
}
else
{
AVConnection c = (AVConnection)ID_Table[InstanceID];
if ((c.NumberOfTracks <= 1) && (Unit == DvAVTransport.Enum_A_ARG_TYPE_SeekMode.TRACK_NR))
{
throw new UPnPCustomException(710, "Invalid seek mode. Cannot seek on a zero or one-item playlist or media.");
}
c.Seek(Unit, Target);
}
}