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
}
			public void widgetSelected( SelectionEvent e )
			{
				cmbGroup.setEnabled( true );
			}
		} );
		cmbGroup = new Combo( aggOnComposite, SWT.BORDER | SWT.READ_ONLY );
		cmbGroup.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL ) );
		if ( isRef )
		{
			txtDisplayName.setEnabled( false );
			cmbType.setEnabled( false );
			cmbFunction.setEnabled( false );
			cmbDataField.setEnabled( false );
			txtFilter.setEnabled( false );
			argsComposite.setEnabled( false );
			cmbGroup.setEnabled( false );
			btnTable.setEnabled( false );
			btnGroup.setEnabled( false );
		}
	}
	private void createCommonSection( Composite composite )
	{
		new Label( composite, SWT.NONE ).setText( EXPRESSION );
		txtExpression = new Text( composite, SWT.BORDER );
		txtExpression.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
				| GridData.GRAB_HORIZONTAL ) );
		createExpressionButton( composite, txtExpression );
		txtExpression.addModifyListener( new ModifyListener( ) {