Data Table Relationships

Situation: I have two DataTables Loaded in my DataSet. I was pondering createing a parent/child relationship between these two DataTables and return the results to a treewiew. Meaning, The root node in the treeview will be a row value from the parent table and the child nodes will be from the child table. I have done this using datatables without relationships, but it looks pretty ugly.
Question:I was just wondering if there is a cleaner way to do this using relationships? MSDN Is very vauge on this topic. go figure :rolleyes: