If you know the preceding event, you can write code that recreates that event within the current rule and accesses the data.
The coding has the following limitations:
' Casting the very first event in this rule to its typeDim myRootEvent AsCreo.PWS.Automation.GenericDataModel.GenericUserStartEvent =triggerEvent.RootEvent
' Casting the previous event in this rule to its typeDim myRefineOkEvent AsCreoCreo.PWS.Automation.PrinergyDataModel.InputFileRefinedOk =triggerEvent.Previous