Bug 213822 [Regression]Can not save the modification of group in Aggregation builder
Description: [2.2.2]Can not save the modification of group in Aggregation builder Build number: 2.2.2.v20071225-0630 Steps to reproduce: 1, New a table with two groups 2, Insert a aggregation builder in group footer 3, Select the first group and click OK 4, Open the builder again and modify the group to group2 Expected result: The modification can be saved Actual result: The modification takes no effect and the report design has no dirty mark after the modification. Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
try
		{
			List aggrInfoList = DataUtil.getAggregationFactory( )
					.getAggrInfoList( IAggregationFactory.AGGR_TABULAR );
			return (IAggregationInfo[]) aggrInfoList.toArray( new IAggregationInfo[0] );
		}
		catch ( BirtException e )
		{
			ExceptionHandler.handle( e );
			return new IAggregationInfo[0];
		}
	}
	/**
	 * fill the cmbDataField with binding holder's bindings
	 */
	private void initDataFields( )
	{
		cmbDataField.setItems( getColumnBindings( ) );
		if ( binding != null && binding.getExpression( ) != null )
		{
			cmbDataField.setText( binding.getExpression( ) );
		}
	}
	private String[] getColumnBindings( )
	{
		List elementsList = DEUtil.getVisiableColumnBindingsList( getBindingHolder( ) );
		String[] bindings = new String[elementsList.size( )];
		for ( int i = 0; i < bindings.length; i++ )
		{
			bindings[i] = ( (ComputedColumnHandle) elementsList.get( i ) ).getName( );