Total length of list in using struts 2 tag

Question

I iterate a list using Struts 2 tags.

<s:iterator value="popUpScreenDetailsList" status ="rowCounter">
    //do something
<s:/iterator>

Is there a way, by which I can get the length of the list without iterating?

The motivation to do it, is to use javascript to validate checkboxes.

Answer 1

If it's a Java List object, then you can also get the length (size) by

<s:property value="%{getPopUpScreenDetailsList().size()}"/>

Answer 2

<s:property value="popUpScreenDetailsList.size"/>