Is there a way to check how many messages are in a MSMQ Queue?

user_98814 0
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I was wondering if there is a way to programmatically check how many messages are in a private or public MSMQ using C#? I have code that checks if a queue is empty or not using the peek method wrapped in a try/catch, but I've never seen anything about showing the number of messages in the queue. This would be very helpful for monitoring if a queue is getting backed up.

msmq c#
10 Answers

If you want a Count of a private queue, you can do this using WMI. This is the code for this:

// You can change this query to a more specific queue name or to get all queues
private const string WmiQuery = @"SELECT Name,MessagesinQueue FROM Win32_PerfRawdata_MSMQ_MSMQQueue WHERE Name LIKE 'private%myqueue'";

public int GetCount()
{
    using (ManagementObjectSearcher wmiSearch = new ManagementObjectSearcher(WmiQuery))
    {
        ManagementObjectCollection wmiCollection = wmiSearch.Get();

        foreach (ManagementBaseObject wmiObject in wmiCollection)
        {
            foreach (PropertyData wmiProperty in wmiObject.Properties)
            {
                if (wmiProperty.Name.Equals("MessagesinQueue", StringComparison.InvariantCultureIgnoreCase))
                {
                    return int.Parse(wmiProperty.Value.ToString());
                }
            }
        }
    }
}

Thanks to the Microsoft.Windows.Compatibility package this also works in netcore/netstandard.

user_55044380
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