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JSF expression language

Jhonnathan Emilio Cardona Saineda
Ranch Hand

Joined: Jan 24, 2012
Posts: 32

I have this:
this work:
<h:inputText style="#{(vendedorBB.tipoAccion=='ver')?'FONT-WEIGHT: bold;':''}" />

This too work
<h:inputText style="#{initParam.styleLabel}" />

but how do i do for use both???
<h:inputText style="#{(vendedorBB.tipoAccion=='ver')?'initParam.styleLabel':' '}" /> //this don't work

<h:inputText style="#{(vendedorBB.tipoAccion=='ver')?initParam.styleLabel:' '}" /> //this don't work and the output is error

<h:inputText style="#{(vendedorBB.tipoAccion=='ver')?#{initParam.EstiloLabel}:''}" /> //this don't work and the output is error
Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 15956
    
  19

Why not just:


???

I don't recommend coding complex expressions in EL. Even if you have vast quantities of experience and know how the EL process works from the inside out (I do), debugging EL is a major pair in the sit-down-place. Plus, people routinely abuse it to break the separation between Model and View in MVC.

What my little XML snippet is intended to portray is a situation where the backing bean has to determine which styles to apply to the control. It's a lot easier to code and debug Java String expressions in a backing bean than it is in EL.

Also note that I used a style class instead of a brute-force style. That allows fine-tuning (and skinning!) the styling without requiring application code modifications, since only the CSS needs to be updated if you design the right set of style classes.

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Ramana Panku
Greenhorn

Joined: Feb 01, 2012
Posts: 1


i am facing same problem please help on it as soon as possible.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: JSF expression language
 
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