Hi
Thanks for the reply
Unfortunately we needed a solution fairly quickly - so we have built our own light version of the designer.
Cheers
Brian
yes it is very much possible to use it at run time in windows application (not sure of web).
Look at the sample
http://help.infragistics.com/NetAdvantage/NET/2008.1/CLR2.0/
Formula builder is design time only at this time.
You can enter a feature request that the product managers review for future version enhancements.