      *  @playerversion AIR 2.0
      *  @productversion Flex 4.5 
      */       
-    public var itemRenderer:IVisualElement;
+    public var itemRenderer:IGridItemRenderer;
     
     
     //--------------------------------------------------------------------------

        columnIndex:int = -1,
        column:GridColumn = null,
        item:Object = null,
        itemRenderer:IVisualElement = null,
        relatedObject:InteractiveObject = null,
        ctrlKey:Boolean = false,
        altKey:Boolean = false,


import mx.core.IVisualElement;

import spark.components.IGridItemRenderer;
import spark.components.supportClasses.GridColumn;

/**
