Struts2 dynamic tree error

[Ba...@kp.org]

Using the below code to create a tree reading DB.

<sx:tree id="cus" rootNode="customers" nodeIdProperty="id" 
nodeTitleProperty="customer" childCollectionProperty="customer" />

"customers"is an Array List and "customer"is an object.

Below is the error. Please help


6/11/09 17:17:01:000 PDT] 00000084 runtime       E 
 
Expression stack.findValue(parameters.nodeTitleProperty) is undefined on 
line 23, column 48 in template/ajax/treenode-include.ftl.
The problematic instruction:
----------
==> ${stack.findValue(parameters.nodeTitleProperty)} [on line 23, column 
46 in template/ajax/treenode-include.ftl]
 in include "/${parameters.templateDir}/ajax/treenode-include.ftl" [on 
line 124, column 5 in template/ajax/tree.ftl]
----------

Java backtrace for programmers:
----------
freemarker.core.InvalidReferenceException: Expression 
stack.findValue(parameters.nodeTitleProperty) is undefined on line 23, 
column 48 in template/ajax/treenode-include.ftl.



Thanks & Regards
Bala T Ramanadham



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