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
if ( expr != null )
				{
					cmbDataField.setText( expr );
				}
			}
		} );
		argsComposite = new Composite( composite, SWT.NONE );
		GridData gridData = new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL );
		gridData.horizontalSpan = 3;
		gridData.exclude = true;
		argsComposite.setLayoutData( gridData );
		GridLayout layout = new GridLayout( );
		
		layout.marginWidth = layout.marginHeight = 0;
		layout.numColumns = 3;
		argsComposite.setLayout( layout );
		new Label( composite, SWT.NONE ).setText( FILTER_CONDITION );
		txtFilter = new Text( composite, SWT.BORDER );
		txtFilter.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL ) );
		createExpressionButton( composite, txtFilter );
		txtFilter.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
			}
		} );
		Label lblAggOn = new Label( composite, SWT.NONE );
		lblAggOn.setText( AGGREGATE_ON );
		gridData = new GridData( );