How to get Cloud to Device Pending Messages Count

Question

I am using Azure IoT Hub. In Azure portal, it is easy to see how many cloud to device messages are pending in the queue.

I want to read this value using C# SDK

Answer 1

I finally found the working answer as follows:

using Microsoft.Azure.Devices;

RegistryManager registryManager = RegistryManager.CreateFromConnectionString("registryreadconnectionstring");

Device device = await registryManager.GetDeviceAsync("device-id");

var count  = device.CloudToDeviceMessageCount;