Bug 121352 The data set binding property cannot be retrieved in report preview layout
In report preview page, the datasource/dataset property binding lists cannot be retrieved. The dataset binding can not work correctly in layout preview because it's value cannot get from the binding list. But in the data set edit page, the binding value can be got. You can refer to the attachment.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/parser/ModuleParserHandler.java
protected HashMap tempValue = new HashMap( );
	/**
	 * Constructs the module parser handler with the design session.
	 * 
	 * @param theSession
	 *            the design session that is to own this module
	 * @param fileName
	 *            name of the module file
	 */
	protected ModuleParserHandler( DesignSession theSession, String fileName )
	{
		super( new ModuleParserErrorHandler( ) );
		this.session = theSession;
		this.fileName = fileName;
	}
	/**
	 * Returns the file name the handler is treating.
	 * 
	 * @return the file name the handler is treating.
	 */
	String getFileName( )
	{
		return this.fileName;
	}
	/**
	 * Returns the version of the module file this handler is parsing.
	 * 
	 * @return version of module file.
	 */
	String getVersion( )