Hi David,
Thank you for the update.
We have checked the reported query “How to use Nested ListView” from our end. We have prepared a sample based on the requirement. We have attached the tested sample for your reference and you can download the same from the following link,
You can also refer our online user guide for the same by the following link,
Please check the sample and let us know if you still facing the issue? If yes, please modify our sample and revert us back. It will be helpful for us to check on it and provide you the solution at the earliest.
Regards,
Chandrasekar Sampathkumar