The castor.properties file it tells you how to do this. you need to uncomment the org.exolab.castor.xml.naming=mixed
________________________________ From: Xinjun Chen [mailto:[EMAIL PROTECTED] Sent: Friday, January 19, 2007 4:31 AM To: [email protected] Subject: [castor-user] How to change Castor default binding behavior Hi, I am using Castor-xml-1.0.5 to do data binding. My class file is similar to the following public class HearingDetailsVO { private String caseNo; private String docNo; private int hearings; } When I use default Marshalling behavior, the xml generated is as <case-no> <doc-no>, and etc. Can I modify some property so that Castor by default will use exactly the attribute name "caseNo" as xml name instead of "case-no"? Currently I am writing customized mapping file to solve the problem, but I am wondering whether I can do it without mapping file. Regards, Xinjun

