 package mx.controls.listClasses
 {
 
+import flash.events.EventDispatcher;
+
 import mx.core.IUIComponent;
 import mx.core.IUID;
 

 *  @productversion Flex 3
 */

public class BaseListData
{
	
    include "../../core/Version.as";

    //  columnIndex
    //----------------------------------

	[Bindable("dataChange")]

    /**
     *  The index of the column of the List-based control relative 
     *  to the currently visible columns of the control, where the first column 
