Dynamically changing single to multiselect in Table in OAF

Question

Hi,
I am trying to programmaticallychange single selection to multiple selection of Table in Controler. From UI point of view everything is replaced correctly, but when I am trying to get values of selected rows ALWAYS only the first row is returned as selected (I think it is a default value of singleselection). I have also set rendered option to false for singleselection using personalisation page. Do you know what I am doing wrong or what I should check?
The second issue is a dialog page. As I noticed the page context (table selection values) are lost when I am using confirmation page (dialog page with yes/no option). How should I pass page context to dialog page (table multiselection)?
Controler Code:
    public void processRequest(OAPageContext pageContext, OAWebBean webBean) {
        super.processRequest(pageContext, webBean);
        OATableBean tableBean = (OATableBean)webBean;
        tableBean.prepareForRendering(pageContext);
        // Define new table selection (multi)
        OAMultipleSelectionBean mySelection = (OAMultipleSelectionBean)createWebBean(pageContext, MULTIPLE_SELECTION_BEAN);
        mySelection.setViewUsageName("EventResultsVO1");
        mySelection.setViewAttributeName("SelectFlag");
        //String sEventSelectText = pageContext.getMessage("XLA", "XX_XLA_EVENT_SELECT", null);
        tableBean.setTableSelection(mySelection);
        /* Workaround selection works - not satisfied
            OAMessageCheckBoxBean checkboxSelection = (OAMessageCheckBoxBean)createWebBean(pageContext, OAWebBeanConstants.MESSAGE_CHECKBOX_BEAN);
            checkboxSelection.setViewUsageName("EventResultsVO1");
            checkboxSelection.setViewAttributeName("SelectFlag");
            checkboxSelection.setChecked(false);
            checkboxSelection.setLabel("Wybierz");
            tableBean.addIndexedChild(0,checkboxSelection);
         /* Workaround selection */
        // FireAction for Change Status Button
        OAFlowLayoutBean tableActionBean = (OAFlowLayoutBean)tableBean.getTableActions();
        FireAction FireActionAddGroup = new FireAction();
        FireActionAddGroup.setEvent("ChangeStatusEvent");
        // Change Status Button
        OASubmitButtonBean myButtonBean = (OASubmitButtonBean)createWebBean(pageContext, BUTTON_SUBMIT_BEAN);
        myButtonBean.setPrimaryClientAction(FireActionAddGroup);
        String sChangeStatusButton = pageContext.getMessage("XLA", "XX_XLA_CHANGE_STATUS", null);
        myButtonBean.setText(sChangeStatusButton);
        // Text Item
        OAMessagePromptBean myMessagePromptBean = (OAMessagePromptBean)createWebBean(pageContext, MESSAGE_PROMPT_BEAN);
        String sSpecifyReasonText = pageContext.getMessage("XLA", "XX_XLA_SPECIFY_REASON", null);
        myMessagePromptBean.setPrompt(sSpecifyReasonText+": ");
        myMessagePromptBean.setCSSClass("OraDataText");
        // Text Field Item
        OATextInputBean myTextInputBean = (OATextInputBean)createWebBean(pageContext, TEXT_INPUT_BEAN);
        myTextInputBean.setName("xxPrzyczynaZmianyStatusu");
        myTextInputBean.setID("xxPrzyczynaZmianyStatusu");
        myTextInputBean.setLabel("Przyczyna zmiany statusu");
        myTextInputBean.setMaximumLength(240);
        // Table Action Bean
        tableActionBean.addIndexedChild(0,myMessagePromptBean);
        tableActionBean.addIndexedChild(1,myTextInputBean);
        tableActionBean.addIndexedChild(2,myButtonBean);
    public void processFormRequest(OAPageContext pageContext, OAWebBean webBean) {
          super.processFormRequest(pageContext, webBean);
          String event = pageContext.getParameter(EVENT_PARAM);
          if (event != null && "ChangeStatusEvent".equals(event)) {
              String statusChangeReasonField = pageContext.getParameter("xxPrzyczynaZmianyStatusu");
              if ((statusChangeReasonField != null) && (!"".equals(statusChangeReasonField))) {
                  //Prepare Dialog Page
                  String sChangeConfirmationText = pageContext.getMessage("XLA", "XX_XLA_CHNG_CONF", null);
                  OAException message = new OAException(sChangeConfirmationText);
                  OADialogPage dialogPage = new OADialogPage(OAException.CONFIRMATION, message, null, "","");
                  dialogPage.setOkButtonItemName("ChangeSelectedYesButton");
                  dialogPage.setNoButtonItemName("ChangeSelectedNoButton");
                  dialogPage.setOkButtonToPost(true);
                  dialogPage.setNoButtonToPost(true);
                  dialogPage.setPostToCallingPage(true);
                  String yes = pageContext.getMessage("AK", "FWK_TBX_T_YES", null);
                  String no = pageContext.getMessage("AK", "FWK_TBX_T_NO", null);
                  dialogPage.setOkButtonLabel(yes);
                  dialogPage.setNoButtonLabel(no);
                  //Pass changeReason argument to dialogPage
                  Hashtable formParams = new Hashtable(1);
                  formParams.put("statusChangeReasonField", statusChangeReasonField);
                  dialogPage.setFormParameters(formParams);
                  pageContext.redirectToDialogPage(dialogPage);
              } else {
                  //ChangeReason empty
                  String sSpecifyReasonText = pageContext.getMessage("XLA", "XX_XLA_SPECIFY_REASON", null);
                  throw new OAException(sSpecifyReasonText+"!", OAException.WARNING);
          else if(pageContext.getParameter("ChangeSelectedYesButton")!=null) {
                OAApplicationModule am = pageContext.getApplicationModule(webBean);
                String changeReason = pageContext.getParameter("statusChangeReasonField");
                Serializable parameters[] = {changeReason};
                am.invokeMethod("XXchangeSelectedEvents", parameters);
                OAException confMessage = new OAException("XLA","XX_XLA_DIALOG_MESSAGE", null, OAException.CONFIRMATION, null);
                pageContext.putDialogMessage(confMessage);
Application Module code:
public class xxEventsInquiryAMImpl extends EventsInquiryAMImpl {
    /**This is the default constructor (do not remove)
    public xxEventsInquiryAMImpl() {
    /**Sample main for debugging Business Components code using the tester.
    public static void main(String[] args) {
        launchTester("pzu.oracle.apps.xla.eventsinquiry.server", /* package name */
      "xxEventsInquiryAMLocal" /* Configuration Name */);
    public void XXchangeSelectedEvents(String changeReason) {
        OAViewObject vo = (OAViewObject)getEventResultsVO1();
        EventResultsVORowImpl row = null;
        int fetchedRowCount = vo.getFetchedRowCount();
        RowSetIterator updateIter = vo.createRowSetIterator("updateIter");
        if (fetchedRowCount > 0) {
            updateIter.setRangeStart(0);
            updateIter.setRangeSize(fetchedRowCount);
                // TEST - get number of selected rows
                Row[] selectedRows = updateIter.getFilteredRows("SelectFlag","Y");
                int numRows=selectedRows.length;
            for (int i = 0; i < fetchedRowCount; i++) {
              row = (EventResultsVORowImpl)updateIter.getRowAtRangeIndex(i);
              if (row != null && row.getSelectFlag() != null && row.getSelectFlag().equals("Y") ) {
                  Number rowEventId = (Number)row.getAttribute("EventId");
                  if (rowEventId != null) {
                      CallableStatement st = null;
                      try {
                          String stmt = "begin XX_DSP_FAH_010_API.set_no_action(:1, :2); end;";
                          //XX_DSP_FAH_010_API.set_no_action(p_event_id,p_reason,p_error_code,p_error_desc)
                          OADBTransaction tr = getOADBTransaction();
                          st = tr.createCallableStatement(stmt, 1);
                          st.setInt(1, rowEventId.intValue());
                          st.setString(2, changeReason);
                          st.close();
                          OAExceptionUtils.checkErrors(tr);
                      catch(SQLException sqle) {
                          throw OAException.wrapperException(sqle);
        updateIter.closeRowSetIterator();

Answer 1

Hi,
you can do this by surrounding the cell components (outputText, inputText, checkBox etc) with e.g. a panelLabelAndMessage component. Then on this component inlineStyle property use EL to reference a managed bean property. The managed bean property can now evaluate the check box select state. The trick part in your question is to tell upon rendering of the previous and next row that the check box in the row between has been selected. So you need to find a way to tell this. One option would be to apply logic like below
JUCtrlHierNodeBinding currentRenderedAdfRow = ... use facesContext --> getApplication --> getExpressionFactory --> createValueExpression to create a handle to the #{row} expression
Row rw = currentRenderedAdfRow.getRow();
BindingContext bctx = BindingContext.getCurrent();
BindingContainer bindings = bctx.getCurrentBindingEntries();
DCIteratorBinding dciterator = (DCIteratorBinding ) bindings.get("Name of iterator used by table ");
RowSetIterator rsIterator = dciterator .getRowSetIterator();
Row prevRow = rsIterator.setCurrentRow(rw);
int currRowIndex = rsIterator.getCurrentRowIndex();
Row prevRow = getRowAtRangeIndex(currRowIndex-1); 
Row nextRow = getRowAtRangeIndex(currRowIndex-1); 
//return CSS that colors the background if the following conditions are true
if ( ((DataType) rw.getAttribute("checkBoxAttr")) ||  ((DataType) prevRow .getAttribute("checkBoxAttr")) |  ((DataType) nextRow .getAttribute("checkBoxAttr"))){
  //color background returning CSS
else{
  return empty string
}I wrote this code from the top of my head, so ensure you check for null pointers (e.g. if a prev-row doesn't exist). Also consider caching of the calculation so that it doesn't need to be performed for each cell in a row but only once per row. E.g. you can save the color and the row key in a managed bean in view scope and then compare the key with this managed bean before performing the calculation
Frank