How to show these information?

I create a BO like this:

                                business Business_Ojbects{

                                                .........//elements

                                                node father{

                                                    element person_name :Text

                                                    node son[0,n]{

                                                      element person_name :Text;

                                                }

then i create a datalist for son node called son and a datalist for father list called father in the  OIF(you can see it in the attachment)

My question is : if there are many rows in the father advancedlistPane, how can  I see sons' information of separate father in the son advancedlistPane!

For example ,there are two fathers called Tom and Jerry in the father advancedlistpane,if i select Tom,I will see information of Tom's sons in the son advancelistpane. If I select Jerry,then i will see information of Jerry's sons in the son advancedlistpane