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submit a LIST in struts

Posted on 2007-04-02
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1,265 Views
Last Modified: 2008-02-01
Hello Experts,

I'm programming JSP with Apache Struts and I haven't been able to find the way to submit a List property of the form to the next JSP

My case is the following:

I have a JSP (agentInteractions.jsp) where data is modified, this jsp is popoulated with a List property with the following code:

  <c:forEach items="${immunizationScheduleForm.agentInteractionsList}" var="agentList">
    <tr>
    <td align="center" class="lightgray">
       <html:radio name="agentList" property="interactionAgentKey" value="true"/>
    </td>
    <td align="left" class="lightgray">
      <html:select name="agentList" property="ruleCode">      
        <html:option value="1"><bean:write name="agentList" property="ruleDesc"/></html:option>      
     </html:select>
    </td>
    <td align="left" class="lightgray">
       <html:select name="agentList" property="ruleCode">
          <html:option value="1"><bean:write ame="agentList"property="interactionAgentDesc"/></html:option>
      </html:select>      
    </td>
    <td align="left" class="lightgray">
        <html:select name="agentList" property="interval">
           <html:option value="1"><bean:write name="agentList" property="interval"/></html:option>
        </html:select>&nbsp;      
        <html:select name="agentList" property="intervalUnits">
             <html:option value="1"><bean:write name="agentList" property="intervalUnitsDesc"/></html:option>
        </html:select>      
      </td>
    </tr>
  </c:forEach>

this jsp will go to the corresponding action, but when I get there, data from {immunizationScheduleForm.agentInteractionsList is NULL

I already tried to submit this property thru a hidden field (<html:hidden name="immunizationScheduleForm" property="agentInteractionsList " ?> but I get an error

I believe probably there's an special way to submit list property's

Thanks for your help. Urgent
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Question by:mnateras
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6 Comments
 
LVL 16

Expert Comment

by:suprapto45
ID: 18840844
Could you pass your entire JSP with the corresponding ActionForm here?

Additionally, you are naming all the select boxes with the same name i.e. agentList.

        <html:select name="agentList" property="interval">
           <html:option value="1"><bean:write name="agentList" property="interval"/></html:option>
        </html:select>&nbsp;      
        <html:select name="agentList" property="intervalUnits">
             <html:option value="1"><bean:write name="agentList" property="intervalUnitsDesc"/></html:option>
        </html:select>    

David
0
 

Author Comment

by:mnateras
ID: 18845625
Thanks, I have found out a way to do it
for Each field in the List, I mapped a corresponding String[] property in the FormBean

ex:
List listVar;
   imagine list with 2 fields: field1, field2

we add the following propertys in the FormBean (ActionForm)
  String[] listField1
  String[] listField2

on the .jsp I mapped the fields
  <c:forEach items="${formBean.listVar}" var="listName">
    <html:select name="FormBean" property="listField1">
    ......
    <html:select name="FormBean" property="listField2">
    .......

And I get those arrarys populated with all the <select> values in the Action Class

Regards,
0
 
LVL 16

Expert Comment

by:suprapto45
ID: 18847958
Glad that you solved it by your own.

Shall I ask the page editor to remove this question and refund the points back to you?

David
0
 

Author Comment

by:mnateras
ID: 18848008
I have antoher issue regarding this same matter.
I have succesfully send all the values selected to the corresponding action.
Now I've been strugling populating the <html:select> with the corresponding values retrieved.
The situation is as follows:
I have all the values set in the corresponding arrays, which are
* scheduleAgentKey
* interactionAgentKey

My jsp is as follows
  <c:forEach items="${immunizationScheduleForm.agentInteractionsList}" var="agentList">
      <tr>
    <td align="left" class="lightgray">      
       <c:out value='${agentList.scheduleAgentKey}' />      
       <html:select name="immunizationScheduleForm" property="scheduleAgentKey" value="">      
                  <html:option value="1">scheduleAgent 1</html:option>
                  <html:option value="2">scheduleAgent 2</html:option      
            </html:select>
      </td>
    <td align="left" class="lightgray">
            <html:select name="immunizationScheduleForm" property="ruleCode">      
                  <html:option value="1">ruleCode 1</html:option>      
                  <html:option value="2">ruleCode 2</html:option>      
            </html:select>
      </td>
</c:forEach

I have found out that if i'm able to put the value I want to be selected in the <html:select value="valueToBeSelected"> it will work, but know the problem is:

HOW do I escape the value of agentList.scheduleAgentKey to this value property?

I already tried this
<html:select name="immunizationScheduleForm" property="scheduleAgentKey" value="${agentList.scheduleAgentKey} ">

And values were no selected properly (it just select the default value)

I already <c:out value="${agentList.scheduleAgentKey} "/> and the value is printed, but some how is not escaped in the select tag

Please help!!!
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