[ot] someMap.keySet() JSTL?

[Mark Lowe <ma...@talk21.com>]

anyone know a way of getting the set of keys from a hashmap in jstl?

in java

Set keys = someMap.keySet();

i've tried

<c:forEach var="keys" items="${someForm.items.keySet}">

to no avail ..


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Re: [ot] someMap.keySet() JSTL?

[Kris Schneider <kr...@dotech.com>]

Can't do it directly with JSTL 1.0. If you just iterate over the map, you'll get
instances of Map.Entry, which will expose "key" and "value" properties.

With JSP 2.0, I suppose you could define a custom EL function that would let you
do something like:

<c:forEach var="keys" items="${maps:keySet(someForm.items)}">
...

Quoting Mark Lowe <ma...@talk21.com>:

> anyone know a way of getting the set of keys from a hashmap in jstl?
> 
> in java
> 
> Set keys = someMap.keySet();
> 
> i've tried
> 
> <c:forEach var="keys" items="${someForm.items.keySet}">
> 
> to no avail ..

-- 
Kris Schneider <ma...@dotech.com>
D.O.Tech       <http://www.dotech.com/>

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