Struts 2 Checkbox problem

[ec hurley]

I am trying to create checkboxes by iterating thru an ArrayList. The page comes up blank. Userlist is an array of users. "fullname is an element of user. The JSP code is

<s:form action="adminchg">

<s:iterator value="userlist">

<s:checkbox fieldValue="%{user.fullname}" />

</s:iterator>

<s:submit/>

Can someone please help me? I have not been able to get this working.

[David Newton]

Is the page rendering *anything*? If not, then something else is wrong.

Is there anything in your log file? Is devMode turned on?

[ec hurley]

Nothing is rendered. Log contains "Expression parameter.name is undefined on line 21, column 61 in template/xhtml/checkbox.ftl"

[David Newton]

Ah.

Well, your checkbox tag doesn't have a "name" attribute. That's how form parameters are identified--you'll probably want one.

[ec hurley]

The correct number of checkboxes is rendering. I now need to get the user.fullname to display.

[David Newton]

The "fieldValue" attribute defines the value the checkbox will send if checked.

Where/how do you want the user name to be displayed?

[ec hurley]

Next to the checkbox, as the label

[David Newton]

Try the "label" attribute.

http://struts.apache.org/2.1.6/docs/checkbox.html

[ec hurley]

Thank you for your help. The label rendered when I removed user. prefix. When I look at the source in IE. I see the fieldValue displsayed correctly. I have a better understanding of how to use.

[David Newton]

Oh, I didn't understand that the "user" was part of the object being iterated over--my fault.

The reason it works now is because it'll call getFullname() on whatever is on top of the stack. To use the "user.fullname" syntax you'd have to do something like this:

<!-- Use "id" instead of "var" if using Struts 2.0 -->
<s:iterator value="userlist" var="user">
  <s:checkbox label="#user.fullname"/>
</s:iterator>

Note the "#" in front of user; it creates a value stack context variable (rather than relying on the user object being the top-most stack item).

[Abiodun Adisa]

I have this code

<s:form action="abbey">
   
    <table>
     <s:iterator value="listOfTransaction" var="transaction">
     <tr><td>
     <s:checkbox name="checkName" label="%{tranName}"></s:checkbox>
     </td>
     </tr>
    </s:iterator>
    </table>
    <s:submit/>
</s:form>

It displays the checkboxes. Question is how do i retrieve the List of checkBoxes selected