Unable to refresh page when insert the first row in viewobject

Question

I am using JDeveloper 10g to develop a JSP page, DataAction, AppModule and ViewObject. But when I am trying to use the following code to insert the first row, the page is not getting refresh. The quite weird thing is when I insert the second row, it returns me the first row as well as the second row. And it works well when I am trying to insert the third row, forth row....
//code in AppModule
ViewObject vo= this.getSampleView();
vo.insertRow(newRow);
vo.setNewRowState(Row.STATUS_INITIALIZED);
vo.setAttribute("STR1", str1);
vo.setAttribute("NUMBER1",new NUMBER(1));
vo.setAttribute("STR2", str2);
getTransaction().postChanges();
getTransaction().commit();
//Note: SampleView is a simply view created from a EnityObject mapping to a single table.
Anybody could help me? Thanks very much!

Answer 1

//The following code is the method in AppModule, which is invoked when clicks on the Add Remarks button on web page.
public void addRemarks(String strCustCode,String strRemarks,String strUserID)
ViewObject voRemarks1 = this.getCrmCustomerRemarksView();
ViewObject voRemarks2 = this.getCrmCustomerRemarksView();
NUMBER newSeq = new NUMBER();
try
voRemarks1.setWhereClause(" CRM_CUST_CODE ='" + strCustCode + "'");
voRemarks1.setOrderByClause(" CRM_SEQ_NO DESC");
voRemarks1.executeQuery();
if (voRemarks1.getEstimatedRowCount()<1)
newSeq = new NUMBER(1);
else
Row row = voRemarks1.first();
NUMBER seq = (NUMBER)row.getAttribute("CrmSeqNo");
newSeq = seq.add(new NUMBER(1));
SimpleDateFormat tmpLocalFormat = new SimpleDateFormat();
Date tmpDate = new Date();
tmpDate = Calendar.getInstance().getTime();
tmpLocalFormat.applyPattern("yyyy-MM-dd");
System.out.println("NGNCM003 add Remarks with " + strCustCode + "," strRemarks "," + strUserID);
Row newRow = voRemarks2.createRow();
voRemarks2.insertRow(newRow);
newRow.setNewRowState(Row.STATUS_INITIALIZED);
newRow.setAttribute("CrmCustCode", strCustCode);
newRow.setAttribute("CrmSeqNo",newSeq);
newRow.setAttribute("CrmCreatedBy", strUserID);
newRow.setAttribute("CrmRemarks", strRemarks);
newRow.setAttribute("CrmLastModifiedBy", strUserID);
newRow.setAttribute("CrmCreationTimestamp",tmpLocalFormat.format(tmpDate));
newRow.setAttribute("CrmLastModificationTime",tmpLocalFormat.format(tmpDate));
getTransaction().postChanges();
getTransaction().commit();
catch (Exception ex)
throw new RuntimeException("Invalid Sequence No.");
}