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
IParameterInfo argInfo = (IParameterInfo) arguments.next( );
				if ( argInfo.getName( ).equals( argument ) )
					return argInfo.getDisplayName( );
			}
		}
		catch ( BirtException e )
		{
			ExceptionHandler.handle( e );
		}
		return null;
	}
	public void validate( )
	{
		verifyInput( );
	}
	public boolean differs( ComputedColumnHandle binding )
	{
		if ( isAggregate( ) )
		{
			if ( txtName != null
					&& !strEquals( txtName.getText( ), binding.getName( ) ) )
				return true;
			if ( cmbName != null
					&& !strEquals( cmbName.getText( ), binding.getName( ) ) )
				return true;
			if ( !strEquals( binding.getDisplayName( ),
					txtDisplayName.getText( ) ) )
				return true;
			if ( !strEquals( binding.getDataType( ), getDataType( ) ) )
				return true;