//The action class contains a (dynamically populated) collection such as
persons defined here
@Result(name="list", value="listPeople.action",
type=ServletRedirectResult.class)
public class EditPersonAction extends ActionSupport {
ArrayList<Person> persons = new ArrayList()
<snip>
}
//then the jsp makes reference to persons ArrayList from the action class and
references specific rows by utilising stat.index by the s:iterator iterator
<s:form action="submitPersonInfo" namespace="/conversion" method="post">
<%--
The following is done Dynamically
--%>
<s:iterator value="new int[3]" status="stat">
<s:textfield label="%{'Person '+#stat.index+' Name'}"
name="%{'persons['+#stat.index+'].name'}" />
<s:textfield label="%{'Person '+#stat.index+' Age'}"
name="%{'persons['+#stat.index+'].age'}" />
</s:iterator>
this would achieve the effect of dynamically populating n number of Person
objects
does this answer the question?
Martin Gainty
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> Date: Mon, 3 May 2010 09:08:29 -0500
> From: [email protected]
> To: [email protected]
> Subject: Re: input fields with dynamic names
>
> Bump. Any other ideas?
>
> mitch
>
>
> Mitch Claborn wrote:
> > That works for setting parameter names, but not so well when the tags
> > in the JSP need to retrieve the value for display in the page,
> > particularly if there is a validation error. If there is a static
> > field named "fred" and the action has a "getFred()" method, then all
> > is good. But the field names in my case are dynamic, so I can't have
> > a getNNNNN for all of the dynamic fields.
> >
> > mitch
> >
> >
> > Greg Lindholm wrote:
> >> You are probably looking for ParameterAware
> >>
> >> http://struts.apache.org/2.x/struts2-core/apidocs/org/apache/struts2/interceptor/ParameterAware.html
> >>
> >>
> >>
> >>
> >> On Wed, Apr 28, 2010 at 12:47 PM, Mitch Claborn <[email protected]>
> >> wrote:
> >>
> >>> I'm sure I've seen the answer to this somewhere, but darned if I can
> >>> find it
> >>> now when I need it!
> >>>
> >>> I have a page that allows edits of various options, the names of
> >>> which are
> >>> dynamically retrieved from the database. If I have the code in the
> >>> JSP as
> >>> below, the value displayed in the text field is always that from the
> >>> database. If there is a validation error, the user's input value is
> >>> not
> >>> maintained as it would be if there were an explicit getter/setter
> >>> for each
> >>> option name. Is there a way to code the Action (or the JSP) so that
> >>> the
> >>> value shown is the user's input value if there is an error?
> >>>
> >>> <s:iterator value="authorizedOptions" id="o">
> >>> <s:textfield size="10" name="${o.optionName}"
> >>> id="${o.optionName}" value="${o.valueInt}" />
> >>>
> >>> Mitch
> >>>
> >>>
> >>> ---------------------------------------------------------------------
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> >>>
> >>>
> >>>
> >>
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> >>
> >>
> >
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> >
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