How do I use a FormulaCell in a virtual grid?

What is the best way to handle FormulaCells in a virtual Grid. The computed data has no business being in the DataSource so adding it to the class is not an option. Thanks, Jonathan

You have to add some auxillary storage to maintain the FormulaTags for each formula cell. Here is a forum thread link that discusses using formulas with a GridDataBoundGrid (which is a type of virtual grid). The option2 discussed in the sample can be used for any virtual grid. http://www.syncfusion.com/forums/message.asp?MessageID=2956