Advance table Add another row button error ---Error: Cannot Display Page

Question

hi, i m new to OAF.
I m trying to add new row programatically to my advanced table, but getting the error
Error: Cannot Display Page
You cannot complete this task because one of the following events caused a loss of page data:
Your login session has expired.
A system failure has occurred.
My page has two EOs with two differnt tables Table A(Accident details) and Table B(Victim Details).Table A is Parent of Table B.No relation is defined in my page for these two tables so far.Foreign key is not defined.
On my page I have various field for entering data for Table A and its saving data properly
For table B i have taken the Advanced table.When i click on Add row button of table i m getting the said error.
My CO
  public void processFormRequest(OAPageContext pageContext, OAWebBean webBean)
    super.processFormRequest(pageContext, webBean);
    OAApplicationModule am=(OAApplicationModule)pageContext.getApplicationModule(webBean);
     System.out.println("processFormRequest ");
     if(pageContext.getParameter("Save")!=null)
        am.invokeMethod("apply",null);
        System.out.println("Save ");
  if  ("addRows".equals(pageContext.getParameter("event")) && "AdvTblRN".equals(pageContext.getParameter("source")) )
  System.out.println("The source is :"+pageContext.getParameter("source"));
  String p_header_id = (String)pageContext.getTransactionValue("p_tx_header_id");
  Serializable[] param = {p_header_id};
  am.invokeMethod("createRow", param);
   am.invokeMethod("apply",null);
   System.out.println("Add Row ");
  pageContext.forwardImmediatelyToCurrentPage(null,false,"N");;
And AM
public void createRow( String p_header_id)
Row prow;
VictimDtlVOImpl pvo= getVictimDtlVO1();
pvo.setMaxFetchSize(0);
prow=pvo.createRow();
pvo.insertRow(prow);
prow.setNewRowState(Row.STATUS_INITIALIZED);
   OAViewObject vo1 = (OAViewObject)getVictimDtlVO1();
OADBTransaction transaction1 = getOADBTransaction(); 
  System.out.println("---- "+transaction1.getSequenceValue("XXMIS_SAFETY_VICTIM_DTL_SEQ"));
  Row row1 = vo1.createRow();
   vo1.insertRow(row1);
  row1.setAttribute("VictimId",transaction1.getSequenceValue("XXMIS_SAFETY_VICTIM_DTL_SEQ")); 
  row1.setNewRowState(Row.STATUS_INITIALIZED);
public void apply()
try {
  getOADBTransaction().commit();
System.out.println("Commit ");
plz help .......
  catch (Exception e)
   e.printStackTrace();

Answer 1

Hi Vaishali,
Use below code for add line in Nested Table.
if(pageContext.getParameter("addRows") != null){
        OAAdvancedTableBean sectionsTable = (OAAdvancedTableBean)webBean.findChildRecursive("AdvTblRN");
        OAInnerDataObjectEnumerator sectionsEnum = new OAInnerDataObjectEnumerator(pageContext, sectionsTable);
        while(sectionsEnum.hasMoreElements()){
            RowSet sectionsRowSet = (RowSet) sectionsEnum.nextElement();
            for(int i = 0; i < 1; i++){
                OARow newRow = (OARow) sectionsRowSet.createRow();
                sectionsRowSet.insertRowAtRangeIndex(sectionsRowSet.getRowCount(), newRow);
Thanks,
Dilip