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/core/Module.java
* <li>the name spaces for various kinds of elements
 * <li>a set of slots defined
 * <li>the library list
 * </ul>
 * by the derived class.
 * <p>
 * The Design Engine may be used in the web environment in which it is necessary
 * to identify elements using a unique ID separate from their object pointer.
 * The root class maintains the object ID counter, as well as an id-to-element
 * map. Because the map is costly, it is enabled only if ID support is enabled
 * in the data dictionary.
 */
public abstract class Module extends DesignElement implements IModuleModel
{
	/**
	 * Identifier for the shared style name space.
	 */
	public static final int STYLE_NAME_SPACE = 0;
	/**
	 * Identifier of the name space that stores layout elements that appear in
	 * the Body slot.
	 */
	public static final int ELEMENT_NAME_SPACE = 1;
	/**
	 * Identifier for the parameter name space.
	 */
	public static final int PARAMETER_NAME_SPACE = 2;
	/**
	 * Identifier for the data source name space.
	 */