Assert.isNotNull( dataSetList );
	protected Control createDialogArea( Composite parent )	{		Assert.isNotNull( dataSetList );		Composite topComposite = (Composite) super.createDialogArea( parent );		createTitleArea( topComposite );		Composite composite = new Composite( topComposite, SWT.NONE );		composite.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );		composite.setLayout( new GridLayout( 2, true ) );		createFieldArea( composite );		createGroupArea( composite );		createTOCArea( composite );		createFilterSortingArea( topComposite );		return topComposite;	}