Using XPRESS to Represent a List

You use the <list> element when representing lists in XPRESS. The contents of the <list> element can be any XPRESS expression.

Use only the <list> XPRESS element in forms if the list must contain calculated elements. Using the <list> element can slow the execution of the form in which it is included. This degradation in performance is typically not noticeable unless the list contains many elements. It is permissible and common for forms to use <list>.

The following example uses the <s> string constants in the XPRESS list, but you can also use the <invoke> or <concat> elements to dynamically build the list elements.

Example

<list>

   <s>cat</s>

   <s>dog</s>

</list>