protected void SetNextAVTransportURISink(System.UInt32 InstanceID, System.String NextURI, System.String NextURIMetaData) { 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 ((NextURI == "") || (NextURI == null)) { c.SetNextAVTransportURI(null, NextURIMetaData); } else { c.SetNextAVTransportURI(new Uri(NextURI), NextURIMetaData); } } }