private void addDeleteLink(final RuleAttribute at) {
ImageHyperlink delLink = addImage( parent,
"icons/delete_item_small.gif" );
delLink.setToolTipText( "Remove this fieldconstraint" );
delLink.addHyperlinkListener( new IHyperlinkListener() {
public void linkActivated(HyperlinkEvent e) {
MessageBox dialog = new MessageBox( Display.getCurrent().getActiveShell(),
SWT.YES | SWT.NO | SWT.ICON_WARNING );
dialog.setMessage( "Remove this rule option?" );
dialog.setText( "Remove this rule option?" );