Bug 209456 No null value in value list from Select value...[07]
Description: No null value in value list from Select value... Build number:2.3.0.v20071112 Steps to reproduce: 1. New sample data source and dataset from CUSTOMERS. 2. Insert dataset to Layout, add a filter on column STATE, click <Select value...>, check value list. 3. New a report parameter, dynamic, tick off isRequired,value column is STATE, want to set default value as Null Value through <Select value...> Expected result: The column contains null value so it should be able to be selected in value list. Actual result: No null value for selection. Error log:n/a
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/SelectValueFetcher.java
}
				results.close( );
			}
			session.shutdown( );
		}
		return selectValueList;
	}
	
	/**
	 * A private method that helps to define all the children data sets'
	 * data sources and data sets themselves
	 * 
	 * @param session
	 * @param dataSet
	 * @param dataSetDesign
	 * @param inclFilter
	 * 
	 * @throws BirtException
	 */
	private static void defineSourceAndDataSets( DataRequestSession session,
			DataSetHandle dataSet, BaseDataSetDesign dataSetDesign,
			boolean inclFilter ) throws BirtException
	{
		if ( dataSet.getDataSource( ) != null )
		{
			session.defineDataSource( session.getModelAdaptor( ).adaptDataSource( dataSet.getDataSource( ) ) );
		}
		if ( !inclFilter )
		{
			if ( dataSetDesign.getFilters( ) != null )