How to retain value in multiple select box

[aneesh vijayakumar]

Hello,

I am doing an edit page. The edit page contains multiple select box. I have no issue while saving the form.
The issue is while the user updates the details.

i was able to retain the values in text field's etc, but I don,t know how to retain the value in multiple select box.

I gave the multiple select like

  
<s:select multiple="true" size="5"  cssClass="" label="Category"  list="{}" name="categorySelect" id="category"   />
  

i tried to retain theselected values by giving

value="%{xxx.vehicleTypes}"   

but in vain...

any help to solve this will be appreciated.

thanks in adavance.
Aneesh

[Ankit Garg]

Are you using struts??

[aneesh vijayakumar]

yes...i am using struts 2

[Bear Bibeault]

Please post Struts questions in the Struts forum. I've moved this post there for you.

[David Newton]

You'll need to provide more details, like the relevant properties of the action class (specifically the property being saved to, and the property being used to do the pre-selects, and how the pre-select values are loaded by the action) at the very least as well as the complete tag usage.

[aneesh vijayakumar]

i am using the struts library tags..

   <%@ taglib uri="http://tiles.apache.org/tags-tiles" prefix="tiles" %>
<%@ taglib prefix="s" uri="/struts-tags"%>
 

the multiple select is inside form tag..

 		<s:form theme="css_xhtml" id = "editServiceForm" enctype="multipart/form-data" action="serviceCentreSave" validate="true">
   

I have some select box and some multiple select box in it.

 										<span><s:select multiple="true" size="5"  cssClass="" label="Category"  list="{}" name="categorySelect" id="category" value="%{serviceCentre.vehicleTypes}"  /></span>
   

i want to retain the value of this multiple select box while doing an update.

the user goes to the edit page to update details using a edit url, through which i am passing the id as a parameter.

in doing so, i am getting the object there by using the method

public String view() throws Exception {
		log.debug("START");
		execute();

		this.xxxx = xxxxService.findById(xxxxId);

		log.debug("COMPLETED");
		return SUCCESS;
	}    

i am able to retain the values of checkbox's and textfield's in the page. but when it comes to select box, i am not able to retain their values.

since this page is used by the user to update his previously entered details, all the entries must be populated.

any help to solve this will be appreciated.

[David Newton]

I don't understand why the "list" attribute is an empty list; I thought the "list" attribute was used to populate the dropdown.

[aneesh vijayakumar]

Actually I got it working...

<s:select multiple="true" size="5"  cssClass="" label="Category"  list="{}" name="categorySelect" id="category" value="%{serviceCentre.vehicleTypes}"    

the list was left empty..

this would have worked fine for the edit...
but while updating , now i checked whether any ehicle types exist in database for the object of reference and i had to give like

 
><s:if test="serviceCentre.vehicleTypes!=null">
<s:select multiple="true" size="5"  cssClass="" label="Category"  list="{serviceCentre.vehicleTypes}" name="categorySelect" id="category" value="%{serviceCentre.vehicleTypes}" /></s:if>  

and it works fine

Thanks all

Aneesh