Unable to set the selected value for a ADF LOV

Question

Hi,
I am developing an application using jdeveloper 10.1.3 and Struts.
I have created a ADF LOV on my JSP Page as given below:
<html:select property="lob" onchange="javascript:selectLOB(this.form)">
<html:optionsCollection label="prompt" value="index" property="lob.displayData"/>
</html:select>
When i submit the form, i am able to get the value of the selected Value in the List.
JUCtrlListBinding listBinding = (JUCtrlListBinding) formBean.get("Lob");
Row r = (Row) listBinding.getSelectedValue();
String SoLob = (String) r.getAttribute("LobLob");
But i am unable to set the selected value back in the list when i return to the form again.
I tried the following:
int x = listBinding.getSelectedIndex();
listBinding.setSelectedIndex(x);
It would be really helpful if some one could let me know what needs to be done.
Thanks,
Subashini

Answer 1

Gyan,
I tried with the code you suggest , its trying to set the value of a field, but my requirement is to change the property for
"Rendered" on the field so that based on search parameters we can hide result table column.
After searching online, I modified the controller code as follows
1.Created a new transient attribute (Testrender) with type "Boolean" and always updateable.
2.changed the "Rendered" property value on the field I want to hide as ${oa.PoSearchVO1.Testrender}.
3. Modified the controller code as follows :
        OAApplicationModule am = pageContext.getApplicationModule(webBean);
        OAViewObject testvo = (OAViewObject)am.findViewObject("PoSearchVO1");
        OADBTransaction txn = am.getOADBTransaction();
        if (testvo != null)
          OARow row = (OARow)testvo.first();
            if (a.equalsIgnoreCase("Approved"))
                 row.setAttribute("Testrender", Boolean.FALSE);
            else
                 row.setAttribute("Testrender", Boolean.TRUE);
        } But now when i run the page and populate the search field and click "Go" its hiding the field but throwing the following error and the search results are also bad.
Its using only the value of one search parameter but not the second one .
The search cannot be executed because the table has pending changes that would be lost. I think the vo is getting dirty when I update the transient attribute value. So I used txn.rollback ,then search is working fine but its not hiding the field.
So can you please let me know how to proceed from here ?