fSelectionCount = SWTFactory.createLabel(parent, NLS.bind(Messages.EditIUContainerPage_itemsSelected, Integer.toString(0)), 1);

		//	fSelectionCount = SWTFactory.createLabel(parent, NLS.bind(Messages.EditIUContainerPage_itemsSelected, Integer.toString(0)), 1);

		Composite buttonParent = new Composite(parent, SWT.NONE);

		GridLayout gridLayout = new GridLayout();

		gridLayout.numColumns = 3;

		gridLayout.marginWidth = 0;

		gridLayout.horizontalSpacing = 10;

		buttonParent.setLayout(gridLayout);

		GridData gridData = new GridData(SWT.FILL, SWT.DEFAULT, true, false);

		buttonParent.setLayoutData(gridData);

		Button selectAll = new Button(buttonParent, SWT.PUSH);

		selectAll.setText(ProvUIMessages.SelectableIUsPage_Select_All);

		GridData selectAllData = setButtonLayoutData(selectAll);

		selectAllData.widthHint = 90;

		selectAll.addListener(SWT.Selection, new Listener() {

			@Override

			public void handleEvent(Event event) {

				setAllChecked(true);

			}

		});

		Button deselectAll = new Button(buttonParent, SWT.PUSH);

		deselectAll.setText(ProvUIMessages.SelectableIUsPage_Deselect_All);

		GridData deselectAllData = setButtonLayoutData(deselectAll);

		deselectAllData.widthHint = 90;

		deselectAll.addListener(SWT.Selection, new Listener() {

			@Override

			public void handleEvent(Event event) {

				setAllChecked(false);

			}

		});

		fSelectionCount = SWTFactory.createLabel(buttonParent, NLS.bind(Messages.EditIUContainerPage_itemsSelected, Integer.toString(0)), 1);

		GridData labelData = new GridData();

		labelData.widthHint = 200;

		fSelectionCount.setLayoutData(labelData);

	}

	void setAllChecked(boolean checked) {

		if (checked) {

			TreeItem[] items = fAvailableIUGroup.getCheckboxTreeViewer().getTree().getItems();

			checkAll(checked, items);

			fAvailableIUGroup.setChecked(fAvailableIUGroup.getCheckboxTreeViewer().getCheckedElements());

		} else {

			fAvailableIUGroup.setChecked(new Object[0]);

		}

		updateSelection();

	}

	private void checkAll(boolean checked, TreeItem[] items) {

		for (int i = 0; i < items.length; i++) {

			items[i].setChecked(checked);

			TreeItem[] children = items[i].getItems();

			checkAll(checked, children);

		}

	}

	void updateSelection() {

		int count = fAvailableIUGroup.getCheckedLeafIUs().length;

		setPageComplete(count > 0);

		String message;

		if (count == 0) {

			message = ProvUIMessages.AvailableIUsPage_MultipleSelectionCount;

			fSelectionCount.setText(NLS.bind(message, Integer.toString(count)));

		} else {

			message = count == 1 ? ProvUIMessages.AvailableIUsPage_SingleSelectionCount : ProvUIMessages.AvailableIUsPage_MultipleSelectionCount;

			fSelectionCount.setText(NLS.bind(message, Integer.toString(count)));

		}