I'm trying to use a crosstab in the detail section of my report. I am binding the data at runtime using NeedDataSource (for the crosstab). I have defined a row group and a column group for my data. I have also defined the same fileds as value expressions in the textboxes for the associated row and column. When I preview the report, I get an error as shown in the attached. Is there a step I am missing that would case this?
TIA
TIA