I'd like to see what you've written. Here's how I understand it so far: http://members.telocity.com/dcancro/images/eng/Struts_MVC.gif
> -----Original Message----- > From: Roman Fail [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 16, 2002 4:35 PM > To: Rick Reumann; Struts List > Subject: RE: getting nested tags to work with DynaActionForm??? > > > I had the same problem - after reviewing the source code for > DynaActionForm I realized that the underlying ArrayList is > not 'automatically' instantiated by the DynaActionForm. In > other words, when the controller is trying to call > DynaActionForm.set("myField[0]") because it sees a request > parameter called 'myField[0]', there is no ArrayList there > yet to match the "myField" property. My solution was to > subclass DynaActionForm and just override the reset() method > in order to instantiate the ArrayList. (since reset() is > called before any setters). I think I also did this using an > array of BasicDynaBeans, and again had to initialize the > array in reset(). > > Of course you don't have to do this when simply displaying > the data, because you are populating the property with your > ArrayList in Action.perform()/execute() before the > DynaActionForm.get() methods are ever called. > > Is there a better solution out there? I don't like having to > write a subclass just to instantiate the ArrayList. > > This is another example of where knowing the exact sequence > of Struts events is crucial. Has anyone ever written up a > detailed step-by-step of what the controller does when a > request comes in? I've written a brief one for our company's > developers - shall I post it? > > Roman Fail > Sr. Web Application Developer > POS Portal, Inc. > > > -----Original Message----- > From: Rick Reumann [mailto:[EMAIL PROTECTED]] > Sent: Tue 7/16/2002 1:33 PM > To: Struts List > Cc: > Subject: getting nested tags to work with DynaActionForm??? > > > > I had an ArrayList property set in my DynaActionForm > and it worked > fine with the nested tag in displaying the information > from the beans > in the ArrayList of this DynaActionForm. The problem > however came when > I when I hit submit with the updated information. I kept getting > BeanUtils.populate errors with no index value set for > 'field.xxxx[0]'. > Sorry can't cite the exact error since I now went to > using a typical > ActionForm and the nested tag page submits fine. > > Is there something special I need to do in order to get > DynamicActionForms to work with Nested tags? > > Thanks, > > -- > > Rick > mailto:[EMAIL PROTECTED] > > > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
