Bug 191089 cross tab Binding tab- Aggregate On field is shows incorrect field name
Cross tab-Binding under properties hows incorrect field for 'Aggregate On'. It show show similar to regular table binding 'Aggregate On' field. For example; instead of Location/country it should show either 'N/A' for table or 'Group Country' for any group.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
/**
	 * Gets the default content property name.
	 * 
	 * @param parent
	 * @return
	 */
	
	public static String getDefaultContentName( Object parent )
	{
		if ( parent instanceof DesignElementHandle )
		{
			List propDefns = ( (DesignElementHandle) parent ).getDefn( )
					.getContents( );
			if ( !propDefns.isEmpty( ) )
			{
				return ( (IPropertyDefn) propDefns.get( 0 ) ).getName( );
			}
		}
		return "";
	}
	/**
	 * Get default slot id of give container element
	 * 
	 * @param parent
	 * @return slot id, -1 if not found
	 */
	public static int getDefaultSlotID( Object parent )
	{
		int slotID = -1;
		if ( parent instanceof GraphicMasterPageHandle )