Duh! Same parameter name -- same property name ... <emote:smackHead/> I shoulda seen it right off.
Thanks Martin Martin Cooper wrote: >>-----Original Message----- >>From: Hoang, Hai [mailto:[EMAIL PROTECTED]] >>Sent: Thursday, September 19, 2002 10:44 AM >>To: 'struts-user' >>Subject: [AGAIN] Duplicate values on both ActionForm error. >> >> >>I've a master-detail page setup where the master page >>contains a number of >>items with hyperlink to the detail page. The problem occurred when I >>updating on the detail page and submit the update back to the >>database and >>forward the request back to the master page. Specifically, >>the property >>value (called it actionName = "update") on the ActionForm of >>the detail page >>forwards it value to the ActionForm of the master page. Do >>you know why >>this happens? Thanks. >> >This is just the way it works. If you forward a request using the >RequestDispatcher (which is what you are doing - or rather, what Struts is >doing at your request), all of the original request parameters are still >present, because it's actually still the same request. > >If your first action forwards to a URL that has additional parameters in it, >those parameters will be added to those in the original request, so the >combination of all of them will be seen by the second action. > >The only way to avoid having the original parameters be passed on to the >second action is to use a redirect instead of a forward. The main problem >with that is that it costs you a round-trip back through the browser. > >This is just one of the reasons that action chaining is not recommended in >Struts applications. There are many more - just as Craig. ;-) > >-- >Martin Cooper > -- Eddie Bush -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
