public void createPartControl(Composite _parent) {
SashForm sashForm = new SashForm(_parent, SWT.VERTICAL);
sashForm.setLayoutData(new GridData(GridData.FILL_BOTH));
myAttributesTableViewer = new EOAttributesTableViewer(sashForm, SWT.NONE);
myAttributesTableViewer.setLayoutData(new GridData(GridData.FILL_BOTH));
myAttributesTableViewer.addSelectionChangedListener(new AttributeSelectionChangedListener());
myRelationshipsTableViewer = new EORelationshipsTableViewer(sashForm, SWT.NONE);
myRelationshipsTableViewer.setLayoutData(new GridData(GridData.FILL_BOTH));