Equivalent logic:messagesPresent in JSTL

[bj...@accenture.com]

Is there an equivalent in JSTL for the logic :messagesPresent ?  I've looked on Google, but I can't find a decent example.  Someone suggested <c:if test="${! Empty requestScope['org.apache.struts.action.ERROR'}"> but that doesn't work.  I also need to test if a certain property is added, so I can put certain labels in red (read, add a css-class to a span if a specific property is added. E.g. <span<logic:messagesPresent property="txtUserName"> class="errorMsg"</logic:messagesPresent>>Username:</span>)

Tia

Bjorn 

 



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Re: Equivalent logic:messagesPresent in JSTL

[Laurie Harper <la...@holoweb.net>]

bjorn.de.bakker@accenture.com wrote:
> Is there an equivalent in JSTL for the logic :messagesPresent ?  I've looked on Google, but I can't find a decent example.  Someone suggested <c:if test="${! Empty requestScope['org.apache.struts.action.ERROR'}"> but that doesn't work.  

JSTL has no direct equivalent, since message management is a Struts 
feature, which JSTL knows nothing about. The snippet you posted should 
be roughly right. It should be '! empty' rather than '! Empty', the 
value may be in session rather than request scope, and if you're 
actually looking for messages rather than errors the name of the 
constant is different.

 > I also need to test if a certain property is added, so I can put 
certain labels in red (read, add a css-class to a span if a specific 
property is added. E.g. <span<logic:messagesPresent 
property="txtUserName"> 
class="errorMsg"</logic:messagesPresent>>Username:</span>)

Can you get the effect you want using the errorStyle / errorStyleClass / 
errorStyleId properties of the html:* input tags? If not, you may be out 
of luck since the ActionMessages/ActionErrors classes aren't Map-like :(

L.


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