Useing Selection listener in table cause some Problems

Question

Hi,
i am use jdev 11.1.1.4.0
my use case :
i have master/detail table
when the end user change data in the detail table then he click Directly to anather record in the master table
i need to show alert message ("you must save changes first") and Prevent moving, so i do Following:
in the master table i used manged bean in SelectionListener attribute called onTableSelect(SelectionEvent selectionEvent) as this:
if (ADFUtils.getApplicationModuleForDataControl("CodesModuleDataControl").getTransaction().isDirty()) {
FacesContext context = FacesContext.getCurrentInstance();
context.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_WARN, getValueFromResourceBundle("hr.view.vcBundle","global.msgUnsavedChanges"), null));
*// HERE i need to move highlight to the previous record //*
else {     
RichTable table = (RichTable)selectionEvent.getSource();
CollectionModel tableModel = (CollectionModel)table.getValue();
JUCtrlHierBinding adfTableBinding = (JUCtrlHierBinding) tableModel.getWrappedData();
DCIteratorBinding tableIteratorBinding = adfTableBinding.getDCIteratorBinding();
Object selectedRowData = table.getSelectedRowData();
JUCtrlHierNodeBinding nodeBinding = (JUCtrlHierNodeBinding) selectedRowData;
Key rwKey = nodeBinding.getRowKey();
tableIteratorBinding.setCurrentRowWithKey(rwKey.toStringFormat(true));
the code is work correctly but in the master table the highlight record Becomes Different from the itterator table,
My question is how can i move highlight record in the table according to it itterator.
Best regards

Answer 1

In the selectionListener you can get the previously selected rows like this:
    public void onSelectionListener(SelectionEvent selectionEvent) {
        Key removedKey = null;
        List removedkeys = null;
        RowKeySet removed = selectionEvent.getRemovedSet();
        for (Object l: removed) {
            removedkeys = (List)l;
            for (Object k: removedkeys) {
                removedKey = (Key)k;
                logger.finer("previously selected row key: " + removedKey.getAttribute(0));
        }If you want to select the above row again, you can do something like the following:
        DCIteratorBinding someiteratorIT = ADFUtils.findIterator("SomeIterator");
        someiteratorIT .setCurrentRowWithKeyValue((String)removedKey.getAttribute(0));
        getT4().setSelectedRowKeys(removed);
        AdfFacesContext.getCurrentInstance().addPartialTarget(getT4());
    }where getT4() is the RichTable.
Edited by: John on Mar 19, 2012 1:55 PM