 <p>Ok - here is a very basic working example of list indexing. The main change is to move the creation of the model from getModel() to prepare(). This is because getModel() is called for every value you need to set the list - so you end up re-creating your model each time overwriting the previous change.</p> <pre><code>package com.blackbox.x.actions; import java.util.ArrayList; import java.util.List; import com.blackbox.x.actions.ListDemo.ValuePair; import com.opensymphony.xwork2.ActionSupport; import com.opensymphony.xwork2.ModelDriven; import com.opensymphony.xwork2.Preparable; public class ListDemo extends ActionSupport implements ModelDriven&lt;List&lt;ValuePair&gt;&gt;, Preparable { private List&lt;ValuePair&gt; values; @Override public List&lt;ValuePair&gt; getModel() { return values; } public String execute() { for (ValuePair value: values) { System.out.println(value.getValue1() + ":" + value.getValue2()); } return SUCCESS; } public void prepare() { values = new ArrayList&lt;ValuePair&gt;(); values.add(new ValuePair("chalk","cheese")); values.add(new ValuePair("orange","apple")); } public class ValuePair { private String value1; private String value2; public ValuePair(String value1, String value2) { this.value1 = value1; this.value2 = value2; } public String getValue1() { return value1; } public void setValue1(String value1) { this.value1 = value1; } public String getValue2() { return value2; } public void setValue2(String value2) { this.value2 = value2; } } } </code></pre> <p>and the corresponding jsp </p> <pre><code>&lt;%@ taglib prefix="s" uri="/struts-tags" %&gt; &lt;html&gt; &lt;head&gt; &lt;/head&gt; &lt;body&gt; &lt;s:form action="list-demo" theme="simple"&gt; &lt;table&gt; &lt;s:iterator value="model" status="rowStatus"&gt; &lt;tr&gt; &lt;td&gt;&lt;s:textfield name="model[%{#rowStatus.index}].value1" value="%{model[#rowStatus.index].value1}"/&gt;&lt;/td&gt; &lt;td&gt;&lt;s:textfield name="model[%{#rowStatus.index}].value2" value="%{model[#rowStatus.index].value2}"/&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/s:iterator&gt; &lt;/table&gt; &lt;s:submit/&gt; &lt;/s:form&gt; &lt;/body&gt; &lt;/html&gt; </code></pre>