Subreport in a subreport data problem

[IjumpOverU]

I am trying to write a report that has a subreport within a subreport. The bigger problem is that the data I need to return for the second child (subreport) is dependant on the data returned by it's parent dataset. This means I need to fetch and return that data set once for each record in the parent report (meaning the first subreport). Is there anyway to do this with the Mircosoft Reporting tool. I am using a WinForm and have not found anything so far.