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
*            The name space ID.
	 * @return The name space.
	 */
	public NameSpace getNameSpace( int ns )
	{
		assert ns >= 0 && ns < NAME_SPACE_COUNT;
		return nameSpaces[ns];
	}
	/**
	 * Returns the module name space instance for the given name space in this
	 * module.
	 * 
	 * @param nameSpace
	 *            the name space ID
	 * @return the module name space for the given name space
	 */
	public IModuleNameSpace getModuleNameSpace( int nameSpace )
	{
		assert nameSpace >= 0 && nameSpace < NAME_SPACE_COUNT;
		return moduleNameSpaces[nameSpace];
	}
	/**
	 * Returns the next element ID and increments the ID. Used to assign an ID
	 * to new elements.
	 * 
	 * @return The ID to assign to the new element.
	 */
	public long getNextID( )
	{
		return elementIDCounter++;