5

I have a variable:

private ArrayList<LabelValueBean> circleNameIdList;

inside my Action class where it's value get populated.

I want to display the label in my drop-down in JSP and when one label is selected, the corresponding value to that particular label in circleNameIdList to be passed to the server. Eg.: If label: NewYork is selected then it's corresponding id = 5, is sent to the server.

How can I achieve this?

Up till now I was doing like this in JSP:

<s:select list="#session.circleNameIdList" label="Select Circle:" name="circleNameIdList" id="circleNameIdList"></s:select>

However, it display is not correct.

Roman C
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Siddharth Trikha
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1 Answers1

5

I see you are using a LableValueBean to populate and show a dropdown. It's a former bean used at last to display a list of objects. In Struts2 you're no longer required such a helper bean. You can display a list of objects by specifying a key field that would hold a unique value of the selected option and a value to be shown as the option text. For example if your object 

public class Circle {
   private Long id;
   //getter and setter here

  private String name;
  //getter and setter here
}

and you have in the action class

private List<Circle> circleNameIdList;
//getter and setter here

/**
 * Hold the selected value
 */
private Long circleId;
//getter and setter here

then 

<s:select id="circleNameIdListID" label="Circle:" name="circleId" 
  list="circleNameIdList"   listKey="id" listValue="name" headerKey="-1" headerValue="Select Circle"/>

could be used to show the dropdown.

Roman C
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  • Circle in my case is not an object. My circleNameIdList was ArrayList. So basically kinda map with types strings . Now, I want to display names in drop down and get id in action class. How can i do it???? – Siddharth Trikha Dec 09 '13 at 04:01
  • Add/replace these attributes `listKey="value" listValue="label"`. – Roman C Dec 09 '13 at 10:45