UIUtil.bindHelp( parent,IHelpContextIds.DELETE_WARNING_DIALOG_ID );
	protected Control createDialogArea( Composite parent )	{		Composite composite = (Composite) super.createDialogArea( parent );		new Label( composite, SWT.NONE ).setText( preString );		Tree tree = new Tree( composite, SWT.NONE );		tree.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );		for ( Iterator itor = refrenceList.iterator( ); itor.hasNext( ); )		{			Object reference = itor.next( );			TreeItem item = new TreeItem( tree, SWT.NONE );			item.setText( DEUtil.getDisplayLabel( reference ) );			item.setImage( ReportPlatformUIImages.getImage( reference ) );		}		new Label( composite, SWT.NONE ).setText( sufString );		return composite;	}