Thanks for the response but it definately does not work. For some reason when
it is rendering the dataTable, whatever the first or last evaluation of the
expression is, gets applied to every instance of the image within the
datatable. It seems to cache the result of the EL expression for render and
then use that for all the images at render time, rather than each image
having its own value. I think this is a bug with myfaces
Mike Kienenberger wrote:
>
> Of the code you posted, it looks ok to me.
>
> However, id="#{index + 'working'}" is not legal. id must be a static
> value.
>
>
>
> On 9/12/06, Toppac <[EMAIL PROTECTED]> wrote:
>>
>> I am trying to use a datatable to render bunch of data and display an
>> image
>> next to each row rendered based on the rowIndex. My code is below. The
>> problem I am seeing is that inside the graphicImage tag, the index
>> doesn't
>> have scope. I can print the index before and after the graphicImage, but
>> when used inside the rendered attribute it always rendered to empty
>> string.
>> I tried to use the index as part of the id for the graphicImage,
>> something
>> like id="#{index + 'working'}" and it always rendered to just "working".
>> I
>> have tried just using rowIndex, tried naming the rowIndexVar something
>> other
>> than index, and no luck. I am wondering how I can use the current index
>> inside other tags. I have also tried using JSTL tags c:if to do the
>> rendering and it looks like the index doesn't have scope inside there
>> either.
>>
>> The only other thing I can think may be wrong is that that the rendered
>> attribute of the graphicImage is only calculated once or is calculated
>> and
>> applied to all the rows. The last c:if I have in my code below does work,
>> so
>> it seems to only be something with the rowIndexVar inside a dataTable.
>>
>> Last thing, ignore typos in variable names, as I changed the names of the
>> variables to hide the real function of this code (requirement). And
>> currentItemIndex is a c:set var defined earlier in the page.
>>
>> <t:dataTable var="curItem" rowIndexVar="index"
>> value="#{someData.someItems}"
>> border="0" cellpadding="0" cellspacing="0">
>> <t:column id="column1">
>> <f:facet name="header">
>> <f:verbatim> </f:verbatim>
>> </f:facet>
>> #{index} and #{currentItemIndex}
>> and #{(index - currentItemIndex) eq 0}
>> <h:graphicImage alt="Working"
>> rendered="#{(index - currentItemIndex) eq
>> 0}" value="snapc/images/icons/working.gif" />
>> <h:graphicImage alt="Complete"
>> rendered="#{sf:isCompleteItem(curItem)
>> and ((index - currentItemIndex) ne 0)}"
>> value="snapc/images/icons/complete.gif" />
>> <h:graphicImage alt="Incomplete"
>> rendered="#{!sf:isCompleteItem(curItem) and ((index - currentItemIndex)
>> ne
>> 0)}" value="snapc/images/icons/red_arrow.gif" />
>> </t:column>
>>
>> <t:column id="column2">
>> <f:facet name="header">
>> <h:outputText value="Year" />
>> </f:facet>
>> #{curItem.currentlYear}
>> </t:column>
>>
>> <t:column id="column3">
>> <f:facet name="header">
>> <f:verbatim> </f:verbatim>
>> </f:facet>
>> <c:if
>> test="#{fn:length(someData.someItems) > 1}">
>> <h:commandLink action="edit"
>> type="submit"
>> id="edit">
>>
>> #{bundle.usage_editdetails_label}
>> <f:param name="editIndex"
>> value="#{index}"/>
>> </h:commandLink>
>>
>> |
>> <h:commandLink action="delete"
>> id="delete" >
>> #{bundle.usage_delete_label}
>> <f:param
>> name="deleteIndex" value="#{index}"/>
>> </h:commandLink>
>> </c:if>
>> </t:column>
>> </t:dataTable>
>> --
>> View this message in context:
>> http://www.nabble.com/datatable-with-multiple-images-not-interpretting-rendered-attribute-tf2261743.html#a6275415
>> Sent from the MyFaces - Users forum at Nabble.com.
>>
>>
>
>
--
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