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
if ( dataSetItemModel instanceof DataSetItemModel )
			{
				if ( ( (DataSetItemModel) dataSetItemModel ).getDataSetColumnName( )
						.equals( keyChooser.getText( ) ) )
					return DataType.getClass( ( (DataSetItemModel) dataSetItemModel ).getDataType( ) );
			}
		}
		return null;
	}
	/**
	 * Reset intervalType
	 * 
	 * @param choice
	 */
	private void resetIntervalType( IChoice[] choice )
	{
		intervalType.removeAll( );
		for ( int i = 0; i < choice.length; i++ )
		{
			intervalType.add( choice[i].getDisplayName( ) );
		}
		intervalType.setData( choice );
		intervalType.select( 0 );
		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( )