JSP ADF Tree Binding in JDeveloper 10g

Question

I am attempting to create a JSP hierarchical tree structure in JDeveloper 10g. I can successfully create the tree structure for two levels only. I need to be able to create a tree 5 or more levels deep. I have created an ADF Master Detail structure using the sample OE schema for three levels and to the best of my knowledge, I have set up the rules correctly using the Tree Binding Editor accessed by a creating a new binding under Create Binding > Input > Tree for the UIModel of the test web application I created. However, in the JSP page, I can only access the first two levels. The code I'm using is as follows:
<c:forEach var="masterRow" items="${bindings.CustomerOrdersTree.rootNodeBinding.children}">
<c:out value="${masterRow.CustomerId}"/> -
<c:out value="${masterRow.CustFirstName}"/>
<c:out value="${masterRow.CustLastName}"/><br>
<c:forEach var="ordersChildRow" items="${masterRow.children}">
<c:out value="${ordersChildRow.OrderId}"/><br>
<c:forEach var="Row2" items="${ordersChildRow.children}">
</c:forEach>
</c:forEach>
</c:forEach>
The first two levels display fine, but the third level is not displaying. What syntax should I be using to traverse further levels of the tree binding? Is it even possible? Thanks.
Note: I didn't connect any event handlers for collapsing or expanding data. I'm just trying to display everything right now.

Answer 1

I have the nodeExpanded attribute on the second level, set up exactly as the first level. I have a toggleSelection method on the second level (View Object) as well. I've stepped through this method and the arguments are passed correctly and the transient attribute is updated correctly. I'm calling this method through a second DataAction like treeHandler, and this works as far as calling the correct method with the correct argument values.
The breakdown occurs back on the JSP. Even though the transient attibute gets populated accurately according to the toggleSelection method, when accessing that attribute on the JSP, it returns a null value. I can access all the other attributes from the same View Object, except for the transient attribute. I'm not sure what else to try.
I'm starting to doubt this is even the best solution for a tree structure. With the way Oracle's example is set up, you would have to nest so many if-then structures in order to keep track of all the nodeExpanded attributes and which data to display or not, and I anticipate view state issues and caching problems.