That what volatile is supposed to do; when set to true, the Loop doesn't record its state (i.e., the series of values iterated over) into the form data.
On Thu, Mar 12, 2009 at 3:20 AM, Joost Schouten (mailing lists) <joost...@jsportal.com> wrote: > Hi, > > AjaxFormLoop seems intended for formitems and would require a lot of > javascript wiring to make it do what I want it to do. All I need is > for the Form to completely ignore the Loop, just like it did nicely in > 5.0.18. Do you know why the Loop's state needs to be persisted in the > first place? And why can I not tell it to be completely ignored by the > Form? > > It seems to me that all this state saving on a loop is needed if there > are formitems in the loop. If so, it'd be great if I could just ignore > the whole state saving and use the Loop in a nice and simple way by > setting something like ignoreForm=true. > > Cheers, > Joost > > On Tue, Mar 10, 2009 at 1:29 PM, DH <ningd...@gmail.com> wrote: >> Hi, >> >> In your case, why not have a try on AjaxFormLoop component, but I haven't >> tried this component yet and don't have much experience. >> >> Loop component in form is a bit tricky. Set volatile='true' means you need >> have your source object unchanged. But you have deleted one row during >> process, so exception happens. >> >> Thanks >> >> DH >> >> >> ----- Original Message ----- >> From: "Joost Schouten (mailing lists)" <joost...@jsportal.com> >> To: "Tapestry users" <users@tapestry.apache.org> >> Sent: Tuesday, March 10, 2009 11:13 AM >> Subject: Re: [T5.1.0.0] Loop in Form problem introduced in T5.1.0.0 >> >> >> Dear DH, >> >> Thanks for you quick response. I added the param but now get a new >> Exception (see below). The exception still only happens when elements >> are removed from the Loop through AJAX, adding all works fine. This >> whole volatile concept is a bit fuzzy to me and scanning the source of >> the Loop component does not clear things up to me. Do you have any >> further pointers? >> >> Cheers, >> Joost >> >> --- the new Exception ------ >> >> Caused by: java.util.NoSuchElementException >> at java.util.AbstractList$Itr.next(AbstractList.java:427) >> at >> org.apache.tapestry5.corelib.components.Loop.advanceVolatile(Loop.java:335) >> at org.apache.tapestry5.corelib.components.Loop.access$200(Loop.java:41) >> at org.apache.tapestry5.corelib.components.Loop$3.execute(Loop.java:92) >> at org.apache.tapestry5.corelib.components.Loop$3.execute(Loop.java:96) >> at >> org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:471) >> ... 81 more >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Howard M. Lewis Ship Creator Apache Tapestry and Apache HiveMind --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
