Ah excellent thats done the trick in a very simple way.
For others reading this:
I just added a String array named selectedIds to the FormBean and was
able to pull the row's unique ids from that.
My problem now is how to get the export util to deal with these
selected items. Any ideas?
On 09/03/06, Tim Fennell <[EMAIL PROTECTED]> wrote:
> We do this kind of thing a lot, and the way we've tended to do it is
> slightly different. I think the simplest way to do this is to give
> all the checkboxes the same names, but different values (pulled out
> of wherever you like). For example:
>
> <display:table uid="row">
> <display:column ... >
> <input type="checkbox" name="selectedIds" value="$
> {row.mappingId}"/>
> </display:column>
> </display:table>
>
> That way when this posts back to the server you end up with a single
> form field called "selectedIds" that has multiple values. In Struts
> you would simply declare this probably as a String array (maybe a
> Long array if you are brave):
> private String[] selectedIds;
>
> The array will contain an item for each checked checkbox in the
> submission. As for accessing the value the value without using a
> tag....in newer JSP containers (I think it's Servlet 2.2, but I can't
> remember for sure) you can us EL anywhere on the page and the
> container will evaluate it for you. The id or uid attributes on the
> table tag specify the name of an EL variable where each row of the
> table is set during iteration over the rows. Does that make sense?
>
> Also of interest, if you have fairly large tables that you are doing
> this for you might like to take a look at a chunk of JavaScript that
> I wrote that will give you GMail style shift-click ability to select
> ranges of checkboxes :)
> http://jroller.com/page/tfenne/?
> anchor=checkbox_range_selection_in_javascript
>
> -Tim Fennell
> Stripes: http://stripes.mc4j.org/
>
>
> On Mar 9, 2006, at 9:15 AM, Dean Pullen wrote:
>
> > Thanks for your answer.
> >
> > Ok. Well I already have something working which is pretty much
> > similar:
> >
> > <display:table name="sessionScope.cdsMappingBeans" uid="bean" >
> > <input type="checkbox" name="<c:out value="${bean.mappingId}" />"
> > value="<c:out
> > value="${bean.mappingId}" />">
> > </display:table>
> >
> > I'm not sure I understand how to use the syntax you are using, i.e.
> > name="myList[${myItem.id}]" without some tag decleration?
> >
> > Unfortunately the 'mappingId's' are refer to are not the actual index
> > of the list, they're independent. If I need to use some kind of map
> > based on a key id then I will.
> >
> > Even so, I am still unsure how I would then determine which have been
> > selected in the resulting struts action once the submission had been
> > made.
> >
> > Thanks for you help.
> >
> > On 09/03/06, Rick Herrick <[EMAIL PROTECTED]> wrote:
> >> Short answer: Yhere's nothing directly in displaytag for handling
> >> this.
> >>
> >> Longer answer: You can use the implicit row object along with the
> >> BeanUtils
> >> library to create these controls, something like:
> >>
> >> <display:table name="myList" uid="myItem">
> >> <display:column title="...">
> >> <input type="checkbox" name="myList[${myItem.id}]"
> >> value="${myItem.property}"/>
> >> ${myItem.property}
> >> </display:column>
> >> </display:table>
> >>
> >> This assumes that the id of each row is the index of the row in
> >> the list.
> >> This also works when the id is the key in a map, although it's less
> >> straightforward.
> >>
> >> Most satisfying answer: I think I have a little sandbox app that
> >> illustrates
> >> this functionality. I created it when I was trying to figure out
> >> how to do
> >> this myself. If I can find it, I'll post it somewhere. In the
> >> meantime, if
> >> you try to implement this yourself, post any questions you might
> >> run into.
> >>
> >> But the things that you want to do are entirely possible. I use both
> >> checkboxes and select lists with displaytag all the time.
> >>
> >> Rick Herrick
> >> [EMAIL PROTECTED]
> >>
> >>
> >>> -----Original Message-----
> >>> From: [EMAIL PROTECTED]
> >>> [mailto:displaytag-user-
> >>> [EMAIL PROTECTED] On Behalf Of Dean Pullen
> >>> Sent: Thursday, March 09, 2006 4:57 AM
> >>> To: [email protected]
> >>> Subject: [displaytag-user] Selection/Checkbox Tutorial
> >>>
> >>> Hi. I'm very much looking forward to integrating this taglib into
> >>> our
> >>> project(s).
> >>>
> >>> However, I am still very unsure how to implement multiple-
> >>> selection of
> >>> table rows via checkbox functionality. This is not within the
> >>> tutorials and I can find no definitive (or even rough
> >>> description) of
> >>> how to implement a checkbox selection methodology using the
> >>> displaytab
> >>> taglib.
> >>>
> >>> (Also how to incorporate this into the export funtionality would be
> >>> great).
> >>>
> >>> If anyone could point me in the right direction, I'd appreciate it.
> >>>
> >>> Dean.
> >>>
> >>>
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