[flexcoders] dispatchevent question when in a custom component.

[Romain]

Hi,

I am making a custom mxml component, composed of a datagrid and a few
buttons.
I am potentially dispatching the following 2 events:
[Event(name="btnClick", type="flash.events.MouseEvent")]
[Event(name="rowClick", type="mx.events.ListEvent")]

These events are thrown by event handlers on the actual individual
component (either a button or a grid).
for the grid:
private function dispatchRowClickEvent(ev:ListEvent):void{
                                var e:ListEvent=new ListEvent('rowClick');
                                e.rowIndex=ev.rowIndex;
                                dispatchEvent(e);
                         }
for the button
<mx:Button id="btnRefreshRecord"
icon="@Embed(source='../assets/icons/table_refresh.png')" width="20"
height="20" click="dispatchEvent(new Event('gridRefresh'))"
toolTip="Refresh table content" />

My problem is when I consume these events from the component, I'd like
  to be able to write something like:
 public function dgDoubleClickHandler(event:ListEvent) : void
                {
                        var currentIssueForm:IssueForm  = new IssueForm();
                 var buf:XML = XML(event.currentTarget.selectedItem);
                 currentIssueForm.modelIssue = buf;
              PopUpManager.addPopUp(currentIssueForm, this, true);
               PopUpManager.centerPopUp(currentIssueForm);
                }

However at runtime it fails because event.currentTarget.selectedItem
is null.
It is null because the event I am catching is the custom component
event and not the low-level datagrid event....

Is there a way to wrap the datagrid event [and keep its content]
whilst still renaming it ?
Or maybe there is just a simpler way to do this ?

Thanks,

Romain.