Shawn,
Thanks for both the explanation and the "fix." This is definitely one of
those "duhhhh" moments, after reading your explanation. Works perfectly
now.
Best regards,
Buck Bell
>-- Original Message --
>Reply-To: "Tag Libraries Users List" <[EMAIL PROTECTED]>
>Date: Mon, 13 Jan 2003 13:19:57 -0500 (EST)
>From: Shawn Bayern <[EMAIL PROTECTED]>
>To: Tag Libraries Users List <[EMAIL PROTECTED]>
>Subject: Re: x:set var
>
>
>On Mon, 13 Jan 2003 [EMAIL PROTECTED] wrote:
>
>> All,
>>
>> For the life of me, I cannot figure out why the following examples produce
>> different results. Many thanks in advance if anyone can help.
>>
>> I'm importing an XML doc with the following:
>>
>> <x:parse var="reports">
>> <c:import url="reports.xml"/>
>> </x:parse>
>>
>> If I use
>>
>> <x:out select="$reports//report[@shortname='biweekly']/id" />
>>
>> I get the expected result, "157."
>>
>> However, if I use
>>
>> <x:set var="reportID" select="$reports//report[@shortname='biweekly']/id"
>> />
>>
>> <c:out value="${reportID}" />
>>
>> I get, "[[id: null]]".
>>
>> The xPath syntax is obviously correct, as I'm getting the expected
>> result with the x:out tag. So, any idea what I'm doing wrong when I
>> try to expose the same result in the variable reportID?
>
>The <x:out> tag uses the string-value of the element you have selected.
>
><x:set> stores the object representing that node itself, and then <c:out>
>prints the toString() value of that node -- which, per the DOM API, isn't
>the same thing as what XPath means by "string-value."
>
>To store the value you expect instead of outputting it immediately, you
>should use a pattern like
>
> <c:set>
> <x:out>
> </c:set>
>
>instead of <x:set>. Alternatively, you can wrap the XPath expression in
>the string() function and continue to use <x:set>.
>
>Hope that helps,
>
>--
>Shawn Bayern
>"JSTL in Action" http://www.manning.com/bayern
>
>
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