.Net Interview Questions, Resources, Tips & Tricks.

There is no direct property provided with MessageQueue class.
We can use GetMessageEnumerator2 to get the enumerator to enumerate and get the count of number of messages present in the queue.

The below code is used for getting the messages count from a transactional queues

public static int GetMessageCount(MessageQueue messageQueue)
{
   int count = 0;
   using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required))
   {
      MessageEnumerator enumerator = messageQueue.GetMessageEnumerator2();
      while (enumerator.MoveNext(new TimeSpan(0, 0, 0)))
      {
         count++;
      }
   }

   return count;
}

The below code is used for getting the messages count from a non transactional queues

public static int GetMessageCount(MessageQueue messageQueue)
{
   int count = 0;
   using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required))
   {
      MessageEnumerator enumerator = messageQueue.GetMessageEnumerator2();
      while (enumerator.MoveNext(new TimeSpan(0, 0, 0)))
      {
         count++;
      }
   }

   return count;
}