How do you get the count of dead letter messages in an Azure Service Bus queue?

Question

How do you get the count of dead letter messages in an Azure Service Bus queue?

I can get the count in the queue like so ...

var ns = NamespaceManager.CreateFromConnectionString(sbConnectionString);
var queue = ns.GetQueue(queueName);
var count = queue.MessageCount;

But this looks to include both messages in the queue, and also messages in the associated dead letter queue

How can I differentiate between them?

Answer 1

Do take a look at MessageCountDetails property in QueueDescription. You will find DeadletterMessageCount there which will provide you the information you're looking for.

var ns = NamespaceManager.CreateFromConnectionString(sbConnectionString);
var queue = ns.GetQueue(queueName);
var count = queue.MessageCount;
var deadletterMessagesCount = queue.MessageCountDetails.DeadletterMessageCount;