I have a relationship like this:
I'd like to display the Acctnbr field in SSRS like this as a single field:
I have tried expressions like this
=Join(LookUpSet(Fields!Baseacctnbr.Value,
Fields!Baseacctnbr.Value,
Fields!Acctnbr.Value,
"DataSet1"), ",")
and I get an error message that reads:
Aggregate, Rownumber, runningvalue, previous and lookup functions cannot be used in calculated field expressions.
I can get the comma delimited field from SQL using the STUFF function, but my SSRS report is grouping and when I group I loose the SQL code.
How can I get this to work? Much appreciated!