choose JavaServer Page tag
Use the
choose
JSP tag to select at most one enclosed branch of when tags.
Include one or more
when
tags and a final
otherwise
tag within the scope of the choose tag.
-
If none of the
when
tags evaluate to true, HTML or XML text within theotherwise
tag is processed. -
For the first of the
when
tags that evaluates to true, HTML or XML text within that when tag is processed. Subsequent stream processing continues after the close of thechoose
tag.
The choose tag has no attributes. For example:
<pega:choose>
<pega:when zzzz1 >
<!-- HTML or XML code to execute for first when -->
</pega:when>
<pega:when zzzz2 >
<!-- HTML or XML code to execute for second when -->
</pega:when>
<pega:otherwise>
<!-- selected if no previous when tag evaluates to true -->
</pega:otherwise>
</pega:choose>
where zzzz1 and zzzz2 are a name=, test=, or other valid set of when JSP tag attributes.
You can nest when tags within when tags. You can't use JSP tags other than
when
and
otherwise
within the scope of a choose tag.