Best way to do a choose without having to repeat the data?

Question

This is probably an easy one that I am just missing.
Very rusty.
I am trying to figure out how to code this with JSTL so that I don't repeat the TD contents. CSS styling has nothing to do with this. <table:tr> alternates rows of shaded and white. I want to override the <table:tr> and use a particular bgcolor instead of the regular shaded and white background (that the <table:tr> produces) when that condition is met.
I want to do this WITHOUT having to repeat the same code twice.
I probably need to do some sort of c:set using a variable but i'm not sure how.
<c:choose>
<c:when test="${Form.formFieldId == "xyx"}">
     <tr bgcolor="#344543" >
TD1
TD2
TD3
</tr>
</c:when>
<c:otherwise>
     <table:tr>
SAME TD1 as above
SAME TD2 as above
SAME TD3 as above
</table:tr>
</c:otherwise>
</c:choose>
Thanks for any help.

Answer 1

Here is one way:
<c:set var="tdContent">
TD1
TD2
TD3
</c:set>
<c:choose>
<c:when test="${Form.formFieldId == "xyx"}">
<tr bgcolor="#344543" >
  ${tdContent}
</tr>
</c:when>
<c:otherwise>
<table:tr>
  ${tdContent}
</table:tr>
</c:otherwise>
</c:choose>You could also potentially do the following
<c:set var="bgColorAttribute" value="${Form.formFieldId == 'xyx' ? '' : ' bgcolor="#344543"'} "/>
<tr ${bgColorAttribute}>
TD1
TD2
TD3
</tr>Its not exactly what you were after, as it uses the <tr> tag both times, whereas you had one <tr> tag, and one <table:tr> tag in your example.
What is the <table:tr> tag? Its not one I am familiar with. Is it a standard tag library? Or a custom one you are using?
Can you share that taglib import with us so we can see what tag library you are using?
eg for the JSTL core library the line is: <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
For the table taglib it should be something like: <%@ taglib prefix="table" uri="??????" %>
You say CSS styling has nothing to do with this. It probably should
What you would really want is something like
<tr class="oddLine">
<tr class="evenLine">and then define the oddLine/evenLine style classes in an imported css stylesheet.
Then if you wanted to change one of the line colours, you only have to change that css import, and you're done :-)
cheers,
evnafets