I think encapsulating this kind of behavior in a custom tag is why
custom tags exist--and since the iteration is handled by the
checkboxlist tag internally, using an iterator/etc. doesn't really
work.
Dave
On Saturday, October 9, 2010, Maurizio Cucchiara
<maurizio.cucchi...@gmail.com> wrote:
> Do you need to insert a breaking string every 3 items?
> I think this approach is too much expansive in term of time.
> Furthermore, after that, you should deal with subcassing process.
> You should have valid reasons for do that.
> Why don't you simply use mod operator?:
>
> <s:iterator status="stat" value="{1,2,3,4,5}" >
> <s:if test="(#stat.index % 3)==0">
> insert breaking string
> </s:if>
> .....
> </s:iterator>
>
>
> Maurizio Cucchiara
>
>
> 2010/10/9 Burton Rhodes <burtonrho...@gmail.com>:
>> I am trying to override a struts tag template (specifically
>> <s:checkboxlist>), and I can't figure out how to add a parameter to
>> the tag. I have successfully overridden the template by copying
>> "checkboxlist.tld" to my template/simple directory and all works well.
>> Now I would like to add a parameter. It appears that I need to
>> override the the META-INF/struts-tags.tld file because I keep getting
>> the error below. However, using the same method as checkboxlist.tld,
>> I copy a modified version of struts-tags.tld to my
>> META-INF/struts-tags.tld directory. However, I still get the same
>> error below. Not sure if I need to modify another file or if
>> struts-tags.tld cannot be "overridden". Anyone given this a try?
>> Trying not to have to create a new custom tag since all I want is a
>> simple modification to checkboxlist.tld.
>>
>> ------------ERROR--------------------
>> /contact/contactCreate.jsp(286,6) PWC6131: Attribute breakCount
>> invalid for tag checkboxlist according to TLD
>>
>> Caused by:
>> org.apache.jasper.JasperException: /contact/contactCreate.jsp(286,6)
>> PWC6131: Attribute breakCount invalid for tag checkboxlist according
>> to TLD
>> -------------------------------------------
>>
>> Tag with added parameter (breakCount):
>>
>> <s:checkboxlist
>> name="ownerIds"
>> list="%{activeAppUserList}"
>> listKey="appUserId"
>> listValue="nameInformal"
>> required="true"
>> breakCount="3" <!-- New Parameter, will enter the
>> breakString after every 3 items -->
>> breakString="<br/>"
>> />
>>
>> Excerpt from modified "struts-tags.tld":
>> ....
>> <tag>
>> <description><![CDATA[Render a list of checkboxes]]></description>
>> <name>checkboxlist</name>
>> <tag-class>org.apache.struts2.views.jsp.ui.CheckboxListTag</tag-class>
>> <body-content>JSP</body-content>
>> <attribute>
>> <description><![CDATA[Set the html accesskey attribute on
>> rendered html element]]></description>
>> <name>accesskey</name>
>> <required>false</required>
>> <rtexprvalue>false</rtexprvalue>
>> </attribute>
>> <attribute>
>> <description><![CDATA[Number of elements to display before
>> inserting 'break' element.]]></description>
>> <name>breakCount</name>
>> <required>false</required>
>> <rtexprvalue>false</rtexprvalue>
>> </attribute>
>> <attribute>
>> <description><![CDATA[Used to override the default 'break'
>> string. Default is <br>.]]></description>
>> <name>breakString</name>
>> <required>false</required>
>> <rtexprvalue>false</rtexprvalue>
>> </attribute>
>> ....
>>
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