Thanks for that.
While that didn't quite work, it did lead me on a path to something that
did. (I think I miscommunicated the Q a little)
One more thing, does this mean that I next "." within "[]"? So that:
<c:out value='${map[object.value]}'/>
Wouldn't work where map is a map and object is just a bean with getters for
value?
-----Original Message-----
From: Serge Knystautas [mailto:[EMAIL PROTECTED]
Sent: Friday, 7 November 2003 10:27 AM
To: Tag Libraries Users List
Subject: Re: Usage problems with Nested EL Expressions
Chaimungkalanot, Mark wrote:
> Guys,
>
> I need to evaluate an EL expression that contains variables of
> variable names. From the archives, it seems the way to do this is by
> accessing them through the implicit objects pageScope, requestScope
> etc.
> http://marc.theaimsgroup.com/?l=taglibs-user&m=105730468108706&w=2
>
> However, I couldn't really get this to work. I want the value of:
>
> <c:out value="${pageResults.sortHistory.roles.sortColumn}"/>
>
> Which works fine, pageResults is in the request scope. So I try:
>
> <c:set var='OBJ' value='roles'/>
> <c:out value='${requestScope["pageResults.sortHistory." + OBJ +
> ".sortColumn"]}'/>
>
> This gives an error "An exception occured trying to convert String
> "pageResults.sortHistory." to type "java.lang.Double" (null)". So I
> guess my syntax here is wrong? Strangely, even when I try:
>
> <c:out
> value='${requestScope["pageResults.sortHistory.roles.sortColumn"]}'/>
Do it in two stages:
<c:set var="sortColumn"
value="${pageResults.sortHistory.roles.sortColumn}" />
<c:out value="${requestScope[sortColumn]}" />
--
Serge Knystautas
President
Lokitech >> software . strategy . design >> http://www.lokitech.com p.
301.656.5501 e. [EMAIL PROTECTED]
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