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/command/ContentReplaceRecord.java
*            The slotID in which to put the content.
	 * @param oldElement
	 *            the old elemnt to be replaced
	 * @param newElement
	 *            the new element to replace
	 * 
	 */
	public ContentReplaceRecord( Module module, DesignElement containerObj,
			int theSlot, DesignElement oldElement, DesignElement newElement )
	{
		this.module = module;
		this.oldElement = oldElement;
		this.newElement = newElement;
		this.slotID = theSlot;
		this.container = containerObj;
		assert module != null;
		this.slot = container.getSlot( theSlot );
		assert slot != null;
		this.posn = slot.findPosn( oldElement );
		assert posn != -1;
		this.label = ModelMessages
				.getMessage( MessageConstants.REPLACE_ELEMENT_MESSAGE );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.activity.SimpleRecord#perform(boolean)
	 */
	protected void perform( boolean undo )
	{