I created a hidden text box on the report, and entered the following as an expression: =iif(CountRows("CaseData") = 0, "No Data","").
However, during preview the report still errors out probably because that new text box is hit after others that use the CaseData dataset. My goal here is for the REPORT to know the dataset returned no data, not a specific object/field on the report. I'm used to linear programming, and with SSRS I don't really understand in what order things are resolved on the report.
I appreciate your comments thus far. Any other thoughts would be appreciated.