Bug 210892 [Regression]The arguments of aggregation builder can not be modified
Description: [Regression]The arguments of aggregation builder can not be modified Build number: 2.3.0.v20071126-0800 Steps to reproduce: 1, New a table 2, Drag a aggregation builder into table 3, Specify the datafield, function to percentile and argument to 0.3 4, Reopen the aggregation and change the argument to 0.4 Expected result: After step4, the artument is changed to 0.4 Actual result: Nothing happened after step4, the argument is still 0.3 Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
gridData.verticalAlignment = GridData.BEGINNING;
		lblAggOn.setLayoutData( gridData );
		Composite aggOnComposite = new Composite( composite, SWT.NONE );
		gridData = new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL );
		gridData.horizontalSpan = 2;
		aggOnComposite.setLayoutData( gridData );
		layout = new GridLayout( );
		layout.horizontalSpacing = layout.verticalSpacing = 0;
		layout.marginWidth = layout.marginHeight = 0;
		layout.numColumns = 2;
		aggOnComposite.setLayout( layout );
		btnTable = new Button( aggOnComposite, SWT.RADIO );
		btnTable.setText( getBindingHolder( ) instanceof TableHandle ? TABLE
				: LIST );
		btnTable.addSelectionListener( new SelectionListener( ) {
			public void widgetDefaultSelected( SelectionEvent e )
			{
			}
			public void widgetSelected( SelectionEvent e )
			{
				cmbGroup.setEnabled( false );
			}
		} );
		WidgetUtil.createGridPlaceholder( aggOnComposite, 1, false );
		btnGroup = new Button( aggOnComposite, SWT.RADIO );
		btnGroup.setText( GROUP );
		btnGroup.addSelectionListener( new SelectionListener( ) {
			public void widgetDefaultSelected( SelectionEvent e )
			{