Composite Primary key in JPAContainer(ComboBox)

As per my requirement I have to display Names of an entity class which consists of composite primary key(i.e two primary keys), but the issue is i am unable to set default value in combo box with the reference of compositeID.
As i am already setting setContainerDataSource and the values are able to get into the comboBox but unable to set the default one. Is there any method to set Value to the ComboBox which refer by the compositeID.

Please find the pictorial representaion in attachment.
Thanks in advance. :slight_smile:


Anyone know the solution for the problem presented by Alekhya Reddy