Item Details not getting populated in OWL Screen

Hi Experts,

I have created a Custom BO with Root and Item node.I need to design a OWL screen which should populate the item details when a root instance is selected.The binding for the item node fields are done properly but still am seeing only an empty item table when i select a particular instance in the OWL.

I have attached the screen shots for reference.Please help me to figure out the issue.

Thanks in advance.

Regards,

Navin Kandasamy