title: How to append loop index of c:forEach tag to Struts HTML tag attributes?
body: <p>How can I append the loop index of a c:forEach tag to the attributes of a struts select/text tag?</p>
  
  <p>For example.</p>
  
  <pre><code>&lt;%@ taglib uri="/WEB-INF/tld/struts-html.tld" prefix="html"%&gt;
  
  &lt;c:forEach begin="2" end="${pageView.guestCount}" varStatus="gC"&gt;
      &lt;div class="section guest-details"&gt;
         &lt;html:select property='title_guest&lt;c:out value="${gC.index}"/&gt;'&gt;
            &lt;html:options collection="titles" property="code" labelProperty="value" /&gt;
         &lt;/html:select&gt;
      &lt;/div&gt;
   &lt;/c:forEach&gt;
  </code></pre>
  
  <p>throws the following error </p>
  
  <p><code>javax.servlet.jsp.JspException at org.apache.struts.taglib.html.SelectTag.calculateMatchValues(SelectTag.java:246)</code></p>
  
  <p>Now, when I debug the code at <code>&lt;html:select ...</code> it shows that when the property attribute it set, its set as <code>"title_guest&lt;c:out value="${gC.index}"/&gt;"</code> which could be the cause of the exception above.</p>
  
  <p>Also, I should mention, that if I use the above format for appending the loop index to a standard html tag attribute like a <code>&lt;select&gt;</code> tag, the code works fine.</p>
  
  <p>For example</p>
  
  <pre><code>&lt;c:forEach begin="2" end="${pageView.guestCount}" varStatus="gC"&gt;
    &lt;div class="section guest-details"&gt;
        &lt;select name='title_guest&lt;c:out value="${gC.index }"/&gt;'&gt;
              &lt;option value=""&gt;Select Title&lt;/option&gt;
        &lt;/select&gt;
    &lt;/div&gt;
  &lt;/c:forEach&gt;
  </code></pre>
  
  <p>Correctly outputs the intended HTML</p>
  
  <p>What am I doing wrong, should I be using EL to create the string that will populate the "property" attribute of the html:select tag? </p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>The following snippet was also tried and that didn't work either
      <code>&lt;html:select property="title_guest${gC.index}"&gt;</code></p>
  
  <p>And, neither does this work</p>
  
  <pre><code>&lt;c:set var="guestTitle"&gt;title_guest${gC.index}&lt;/c:set&gt;
  &lt;html:select property="${guestTitle}" styleClass="{required: true}"&gt;
   &lt;html:options collection="titles" property="code" labelProperty="value" /&gt;
  &lt;/html:select&gt;
  </code></pre>