Context Menu is not created if datagrid is inside a title window

[ionarawilson1]

In my application I need the user to right-click on the rows of the datagrid, so I created a function that creates a context menu. So when the user right-clicks on the row there is a menu bar and he clicks a choice to open an alert window. However my datagrid is inside a title window that is inside the panel that holds the map. If the data is inside these controls the function to create a context menu does not work. What do I need to change on the code to make it that possible? I have to have the datagrid at least inside the title window. Thank you for any help!!!

  private function init():void
   {
    var dataGridContextMenu:ContextMenu = new ContextMenu();
    dataGridContextMenu.hideBuiltInItems();
    dataGridContextMenu.addEventListener(ContextMenuEvent.MENU_SELECT,
     menuSelectHandler);
    dataGrid.contextMenu = dataGridContextMenu;

   }
   
   private function menuSelectHandler(event:ContextMenuEvent):void
   {
    var displayObject:DisplayObject = event.mouseTarget as DisplayObject;
    while (!(displayObject is IDataRenderer) && !(displayObject == dataGrid))
    {
     displayObject = displayObject.parent;
    }
    
    
    var data:Object;
   
    if (displayObject is IDataRenderer)
     data = IDataRenderer(displayObject).data;
   
    var customItems:Array = [];
    
    if (data)
    {
     var contextMenuItem:ContextMenuItem = new ContextMenuItem(data.name, false, false);
     customItems.push(contextMenuItem);
     
     var contextMenuItem3:ContextMenuItem = new ContextMenuItem("TEST", true, true);
     customItems.push(contextMenuItem3);
     contextMenuItem3.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, contextMenuItem_menuItemSelect)
      
    }
    
    var menu:ContextMenu = ContextMenu(event.target);
    menu.customItems = customItems;
   }

  
 
   private function contextMenuItem_menuItemSelect(evt:ContextMenuEvent):void {
    var obj:String = dataGrid.selectedIndex.toString()
    Alert.show("Property A: + Property B" + obj  , Alert.OK);
   }