I developed an RDL file with a parameter set to be the field value, named "Client", of one of my datasets. I use this parameter value in the page footer because this was the only way I could get Client to appear correctly in the footer. The other methods Client value did not always appear correctly.
Here is what this parameter properties look like:
So this works if there is data, however, if there are no records in rpt_rd_RecreationTherapy, then I get the following error:
and in my page footer, I have a text box set to the following:
=iif(isnothing(Parameters!new_youth.Value),"",Parameters!new_youth.Value)
Ryan D