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    <p>In Struts2, when you need to repopulate the list of bean items, you need to refer them through indices. Please refer the example below:</p> <p>Bean class:</p> <pre><code>public class Person { private int id; private String name; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } } </code></pre> <p>Action class:</p> <pre><code>public class PersonAction extends ActionSupport { private List&lt;Person&gt; persons; public List&lt;Person&gt; getPersons() { return persons; } public void setPersons(List&lt;Person&gt; persons) { this.persons = persons; } //Initial Load method @Override public String execute() { persons = new ArrayList&lt;Person&gt;(); int alpha = 65; for(int i = 0; i &lt; 3 ; i++) { Person person = new Person(); person.setId(i); person.setName(String.valueOf((char)alpha++)); persons.add(person); } return SUCCESS; } //Function that handles the form submit public String updatePerson() { for(Person person : persons) { System.out.println(person.getId() + ":" + person.getName()); } return SUCCESS; } } </code></pre> <p>Page:</p> <pre><code>&lt;s:form action="doUpdate"&gt; &lt;s:iterator value="persons" status="stat" var="person"&gt; &lt;s:textfield value="%{#person.name}" name="persons[%{#stat.count}].name"/&gt;&lt;br/&gt; &lt;/s:iterator&gt; &lt;s:submit value="Submit"/&gt; &lt;/s:form&gt; </code></pre> <p>When you submit the above form, the url would look like <code>doUpdate?persons[0].name=A1&amp;persons[1].name=B1&amp;persons[2].name=C1</code>. Similarly if you need to update id of the first person object, you will append <code>persons[0].id=3</code> to the url using form. In the <code>&lt;s:textfield value="%{#person.name}" name="persons[%{#stat.count}].name"/&gt;</code>, you tell that the predefined value is person's name, for each object. The <code>name</code> attribute is to set the rendered html input element; the name which will be referenced in the url when the form is submitted. You will get a clear idea if you look into the generated html.</p>
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    1. USJames Jithin
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    1. COthanks for your response. this one works for me. For my case, it is a little bit trickier. I just have another list in person object, it is called state. like below:
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    2. COpublic class State { private int id; private String stateAbbr; ... setter, getter .. the Page below <s:form action="doUpdate"> <s:iterator value="persons" status="stat" var="person"> <s:textfield value="%{#person.name}" name="persons[%{#stat.count-1}].name" /> <s:iterator value="%{#person.states}" status="stateStatus" var="personState"> <s:textfield value="%{#personState.stateAbbr}" name="states[%{#stateStatus.count-1}].stateAbbr" label="Abbr State" /> </s:iterator> </s:iterator> </s:submit value="Submit" /> </s:form> states in Person is null? something wrong with my Page?
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    3. COSee, when you submit the form, states[%{#stateStatus.count-1}].stateAbbr should match to some person. Otherwise, it is of no use. Hence, make this change: <s:textfield value="%{#personState.stateAbbr}" name="persons[%{#stat.count-1}].states[%{#stateStatus.count-1}].stateAbbr" label="Abbr State" />
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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