IMessageConsumerIdList Property

Applies to received messages only. Returns the Conusmer Id list, null if the received message has none. Consumer IDs are only used with XML content subscriptions, not with topic subscriptions. When XML subscriptions are applied with consumer IDs, received messages contain a list of the consumer IDs of all XML subscriptions that were a match to that received message. This allows the application to know which of its XML subscriptions were a match to the received message. If not present, null is returned.

IList<long> ConsumerIdList { get; }