Bug 298851 The change on containerData doesn't reflect on UI
During the development of e4 designer on the part layout, we have noticed a problem of synchronizatin of EMF with SWT. The change of containerData via API is not reflected on UI. I suppose it is in working progress.
bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/workbench/ui/renderers/swt/SashRenderer.java
}
			});
		}
	}
	/**
	 * @param element
	 * @return
	 */
	private int getWeight(MUIElement element) {
		String info = element.getContainerData();
		try {
			int value = Integer.parseInt(info);
			return value;
		} catch (NumberFormatException e) {
			return UNDEFINED_WEIGHT;
		}
	}
	/**
	 * Synchronizes the weights of the specified sash form to the underlying
	 * model.
	 * 
	 * @param sf
	 *            the sash form to synchronize
	 */
	private void synchWeightsToModel(SashForm sf) {
		if (sf.isDisposed())
			return;
		
		MPartSashContainer psc = (MPartSashContainer) sf.getData(OWNING_ME);