Bug 150347 Support binary stream as preview image.
See 144843. We need model to save binary strame as report preview image. Currently, preview image is an external image. Maybe need a type to distinguish preview image type.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/ListPropertyState.java
return;
		
		if ( this.struct instanceof Action )
		{
			if ( ( ActionStructureState.DRILLTHROUGH_PARAM_BINDINGS_MEMBER
					.equals( name ) ) )
			{
				name = Action.PARAM_BINDINGS_MEMBER;
			}
			else if ( ActionStructureState.DRILLTHROUGH_SEARCH_MEMBER
					.equals( name ) )
			{
				name = Action.SEARCH_MEMBER;
			}
		}
		if ( struct != null )
		{
			propDefn = (PropertyDefn) struct.getDefn( ).getMember( name );
		}
		else
		{
			propDefn = element.getPropertyDefn( name );
		}
		
		if ( !DesignElement.USER_PROPERTIES_PROP.equals( name ) )
		{
			if ( propDefn == null )
			{
				
				if ( OdaDataSource.PUBLIC_DRIVER_PROPERTIES_PROP.equals( name ) )