Use JSTL forEach loop's varStatus as an ID

java jsp jstl el
Mark W picture Mark W · Jul 6, 2011 · Viewed 236.7k times · Source

I want to use the count from the JSTL forEach loop, but my code doesnt seem to work.

<c:forEach items="${loopableObject}" var="theObject" varStatus="theCount">
    <div id="divIDNo${theCount}">
    </div>
</c:forEach>

produces 

<div id="divIDNojavax.servlet.jsp.jstl.core.LoopTagSupport$1Status@5570e2" >

Answer

highlycaffeinated picture highlycaffeinated · Jul 6, 2011

The variable set by varStatus is a LoopTagStatus object, not an int. Use:

<div id="divIDNo${theCount.index}">

To clarify:

  • ${theCount.index} starts counting at 0 unless you've set the begin attribute
  • ${theCount.count} starts counting at 1

Related questions

EL access a map value by Integer key

I have a Map keyed by Integer. Using EL, how can I access a value by its key? Map<Integer, String> map = new HashMap<Integer, String>(); map.put(1, "One"); map.put(2, "Two"); map.put(3, "Three"); I …

Read More
How do you get the length of a list in the JSF expression language?

How would I get the length of an ArrayList using a JSF EL expression? #{MyBean.somelist.length} does not work.

Read More
Set HTML dropdown selected option using JSTL

In the same context i have another query <select multiple="multiple" name="prodSKUs"> <c:forEach items="${productSubCategoryList}" var="productSubCategoryList"> <option value="${productSubCategoryList}"${productSubCategoryList == productSubCategoryName ? 'selected' : ''}>${productSubCategoryList}</option> </c:forEach> &…

Read More