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From Bart Busschots <bart-li...@so-4pt.net>
Subject Re: Some JSP Taglib help needed
Date Tue, 01 Aug 2006 16:55:35 GMT
Thanks for that Ed,

I was thinking that it would make sense to have the form element be a 
list of some sort, however, can the StrutsValidator deal with validating 
all the elements of a variable list?

Thanks for your help,

Bart.


Ed Griebel wrote:
> You could try something like:
>
> <html:form action="....>
> <c:foreach begin='0' end='${endval}' varStatus='idx'>
>  <html-el:text property='student_name_${idx.count}'/>
> </c:foreach>
>
> But, why not make the student_name an array? The code below should
> work, I havent' compiled it and I usually iterate thru a list of beans
> not scalar Strings, but it should be close.
> - Declare the element in the formbean as <form-property
> name="student_name" type="java.util.List"/> or create student_name as
> a java.util.List if using a POJO for an ActionForm
> - Create a setup action that is called before the JSP is initially
> rendered which  does a '((MyFormType)form).student_name = new
> java.util.ArrayList();'
> - In the JSP form:
> <html:form action="...>
> <c:foreach begin='0' end='${endval}' varStatus='idx'>
>  <html-el:text property="student_name[${idx.index}]"/>
> </c:foreach>
> ...
> </html:form>
>
> -ed
>
> On 8/1/06, Bart Busschots <bart-lists@so-4pt.net> wrote:
>> I want to do some thing that I think should be simple but I can't figure
>> out how to do it with the Struts taglibs. So far I've never used a
>> single scriptlet and I don't want to start now.
>>
>>
>> I have a number stored in a bean which I can get at just fine (tested
>> with bean:write).
>>
>> What I need to do is loop from 1 to that number and print a text area
>> for each element in that range. Were the number three I should get the
>> following output:
>>
>> <input type="text" name="student_name_1"  />
>> <input type="text" name="student_name_2"  />
>> <input type="text" name="student_name_3"  />
>>
>> Can I do that easily with a taglib?
>>
>> To put this into context, I have a two-step form, on the first form the
>> user enters the number of students in their class (as well as other
>> info) and then on the second page the user is presented with the
>> appropriate number of text areas to allow them to enter the names of
>> each of their students. Because I'm can't think of a better way to do it
>> I'm submitting the list of names in a single hidden form field separated
>> by :. I was going to use Java Script to suck all the names from the text
>> areas, encode them and then stick the details in the hidden form field
>> in an onsubmit action. Perhaps there is a better "struts" way to do
>> this. If anyone has any advice I'm entirely open to changing the way I'm
>> doing this.
>>
>> Thanks for your time and help,
>>
>> Bart.
>>
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