Bug 167210 No change in 'TOC Item Expression' after select a group row[0001]
Description: No change in 'TOC Item Expression' after select a group row[0001] Build number: 2.2.0.v20061208-1310 Steps to reproduce: 1, Drag a dataset into layout 2, Select the table and insert a group on it. 3, In New Group, select a row as group row 4, Check the 'TOC Item Expression' Expected result: The row["XXXX"] in 'TOC Item Expression' after selecting 'Group On' Actual result: There is still blank in 'TOC Item Expression' Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
intervalType = new Combo( intervalTypeArea, SWT.READ_ONLY
				| SWT.DROP_DOWN );
		intervalType.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		for ( int i = 0; i < intervalChoices.length; i++ )
		{
			intervalType.add( intervalChoices[i].getDisplayName( ) );
		}
		intervalType.setData( intervalChoices );
		intervalType.addSelectionListener( new SelectionAdapter( ) {
			public void widgetSelected( SelectionEvent e )
			{
				intervalRange.setEnabled( intervalType.getSelectionIndex( ) != 0 );
				intervalBaseButton.setEnabled( intervalType.getSelectionIndex( ) != 0
						&& ( getColumnType( ) != String.class ) );
				intervalBaseText.setEnabled( intervalBaseButton.getEnabled( )
						&& intervalBaseButton.getSelection( ) );
			}
		} );
		
		intervalRange = new Text( intervalRangeArea, SWT.SINGLE | SWT.BORDER );
		intervalRange.setLayoutData( new GridData( GridData.HORIZONTAL_ALIGN_FILL ) );
		intervalRange.addVerifyListener( new VerifyListener( ) {
			/*
			 * (non-Javadoc)
			 * 
			 * @see org.eclipse.swt.events.VerifyListener#verifyText(org.eclipse.swt.events.VerifyEvent)
			 */
			public void verifyText( VerifyEvent event )
			{