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
return elementDefn.getProperty( propertyName );
		}
		return null;
	}
	/**
	 * Gets the proper expression for the given model
	 * 
	 * @param model
	 *            the given model
	 * @return Returns the proper expression for the given model, or null if no
	 *         proper one exists
	 */
	public static String getExpression( Object model )
	{
		if ( model instanceof ParameterHandle )
		{
			
			
			
			return ExpressionUtil.createJSParameterExpression( ( (ParameterHandle) model ).getQualifiedName( ) );
		}
		
		if ( model instanceof LevelHandle )
		{
			LevelHandle handle = (LevelHandle) model;
			DesignElementHandle temp = handle.getContainer( );
			String dimensionName = "";
			while ( temp != null )
			{
				if ( temp instanceof org.eclipse.birt.report.model.api.olap.DimensionHandle )