Counter question

[Ganesh <em...@yahoo.co.in>]

Hello all,

I have a integer value and i have to show that many number of images. Could any one help me how to use the Counter tag.

Regards
Ganesh
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Re: Counter question

[Dale Newfield <da...@newfield.org>]

On 4/20/10 5:21 AM, Ganesh wrote:
> I have a integer value and i have to show that many number of images.
> Could any one help me how to use the Counter tag.

More recent struts2 versions have more useful iterator use cases, so now 
you can just use begin, end, and step 
http://struts.apache.org/2.x/docs/iterator.html

If you're using 2.0 for some reason you can use an OGNL trick to get the 
result you're after: 
<http://www.opensymphony.com/ognl/html/LanguageGuide/coerceCollection.html> 
says "Members of java.lang.Number are "walked" by returning integers 
less than the given number starting with zero"

So if you have an OGNL expression %{#foo} that contains/results in the 
value 7, then the OGNL expression %{#foo.{#this}} will result in the 
list {0, 1, 2, 3, 4, 5, 6} over which you can iterate.

-Dale

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