Checkboxlist Tag (Form Tag) Example

In this section, we are going to describe the checkboxlist tag. The checkboxlist tag is a UI tag that creates a series of checkboxes from a list. Setup is like <s:select /> or <s:radio />, but creates checkbox tags.

Add the following code snippet into the struts.xml file.
struts.xml

<action name="checkboxlistTag" class="net.roseindia.checkboxlistTag">
<result>/pages/uiTags/checkboxlistTag.jsp</result>
</action>

Create two lists in the action class and populate them with various items as shown in the "checkboxlistTag" class.

checkboxlistTag.java


package net.roseindia;

import com.opensymphony.xwork2.ActionSupport;

import java.util.*;



public class checkboxlistTag extends ActionSupport{

  

  private List fruits;

  private List animals;  

  public String execute()throws Exception{

    fruits = new ArrayList();

    fruits.add("Apple");

    fruits.add("Mango");

    fruits.add("Orange");

    fruits.add("Pine Apple");



    animals = new ArrayList();

    animals.add("Dog");

    animals.add("Elephant");

    animals.add("Ox");

    animals.add("Fox");

    return SUCCESS;



  }



  public List getFruits(){

    return fruits;

  }



  public List getAnimals(){

    return animals;

  }

}

Create a jsp using the tags

<s:checkboxlist name="Fruits-name" list="fruits" /> it prints a checboxlist with name Fruits and Creates a series of checkboxes from fruitslist of the action class "checkboxlistTag". <s:checkboxlist name="Animals-name" list="animals" />it prints a checboxlist with name Animals and Creates a series of checkboxes from animals list of the action class "checkboxlistTag".

checkboxlistTag.jsp


<%@ taglib prefix="s" uri="/struts-tags" %>



<html>

  <head> 

    <title>Checkboxlist  (Form Tag) Tag Example!</title>

  </head>

  <body>

    <h1><span style="background-color: #FFFFcc">Checkboxlist 

                  
Tag Example!</span></h1>

      <b>Fruits</b><br>

      <s:checkboxlist name="Fruits-name" list="fruits" /><br>

      <b>Animals</b><br>

      <s:checkboxlist name="Animals-name" list="animals" /><br>

  </body>

</html>

Output of the checkboxlistTag.jsp:

Current Comments

7 comments so far (post your own) View All Comments Latest 10 Comments:

I have a question: What do we need to do to get these checkboxes vertically aligned instead of horizontally..
[]Apple
[]Mango
[]Orange

Posted by Abin on Monday, 09.8.08 @ 15:00pm | #77995

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The Map can be iterated as follows

<s:set name="myMap" value="#{'Persian':'cat','St Bernard':'dog','Goliath Goliath':'bug','Bottlenose':'dolphin','Python':'snake'}" />

<s:iterator status="stat" value="myMap" >
<s:property value="key"/>
<s:property value="value"/>
<br/>
</s:iterator>

Posted by saket on Wednesday, 12.19.07 @ 22:34pm | #42997

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Hi,

I'm trying to iterate a map like the following but it's not producing any output. Can anyone tell me why?

<s:set name="myMap" value="{'Persian':'cat','St Bernard':'dog','Goliath Goliath':'bug','Bottlenose':'dolphin','Python':'snake'}" />

<s:iterator status="stat" value="myMap" >
${key}
${value}
</s:iterator>

Posted by Billy on Tuesday, 12.4.07 @ 06:06am | #41222

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Posted by Billy on Tuesday, 12.4.07 @ 06:04am | #41221

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Hi there

When i try running above example i always get following error:

"field 'list', name 'daysname': The requested list key 'fruits' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]"

What am i doing wrong?
Thanks a lot for your help!

Greetings from Rwitzerland,
Raoul

Posted by Raoul on Thursday, 11.1.07 @ 20:17pm | #35335

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Hi,friends
i want to implement a selective list of elements(for example, email list) with checkboxlist and perform an operation(like deletion) on selected items.(like, delete email in yahoomail).Help Me PLZZZZ ;-(