Bug 188027 PasteAction is diabled
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/DesignElementHandle.java
element = element.getVirtualParent( );
			}
			else
			{
				element = element.getExtendsElement( );
			}
		}
		return resultList;
	}
	/**
	 * Filters propery binding list.If the same name of property binding is
	 * exist, filter it from result set.
	 * 
	 * @param propertyBindings
	 *            each item is property binding.
	 * @param nameList
	 *            each item is name of property binding.
	 * @return the property binding list.
	 */
	private List filterPropertyBindingName( List propertyBindings, List nameList )
	{
		if ( propertyBindings == null )
			return Collections.EMPTY_LIST;
		List resultList = new ArrayList( );
		Iterator iterator = propertyBindings.iterator( );
		while ( iterator.hasNext( ) )
		{
			PropertyBinding propBinding = (PropertyBinding) iterator.next( );
			String name = propBinding.getName( );
			if ( !nameList.contains( name ) )