Problem in LOV event

Question

we are doing some customization to perform validations on LOV event.
First we are calling the SuperForm request , then we are checking for the LOV event and calling one package for the validations.
In first instance it works fine like: we opn the LOV and then select any value, it works fineas expected.
The problem comes : when we are tring to again open the LOV by clicking on the LOV icon , the LOV region window is not opening.
It is taking the previous value and calling the package again.
Please suggest any solution for the same.

Answer 1

I am performing the validation for 2 LOV`s Supplier and SupplierSite.
SupplierSite LOV is dependent on supplier.
//Call processFormRequest method of base class
super.processFormRequest(pageContext, webBean);
//declaring the lov object
String strLovItemName1 = pageContext.getLovInputSourceId();
//check for LOV click event
if (strLovItemName1 != null && !strLovItemName1.equals("")) {
//checking the Supplier Site LOV for any event
if (strLovItemName1.equals("Supplier")) {
//call the base class
super.processFormRequest(pageContext, webBean);
System.out.println("Supplier lov clicked ");
// check if supplier id and org id is not null
if (strSuppId != null && !("").equals(strSuppId) &&
intOrgId != null && !intOrgId.equals("")) {
//supplier site id is not null then convert it into integer
///****callin the package*****//////
// call for the supplier site iD LOV
else if (strLovItemName1.equals("SupplierSite")) {
if (strSuppSiteId != null && !("").equals(strSuppSiteId) &&
suppWebBean != null && !("").equals(suppWebBean) &&
intOrgId != null && !intOrgId.equals("")) {
/////**** calling the package***/////
Please guide me .