How can I “specify a dataset aggregate” in this SSRS Expression?

Question

I need a row value in my SSRS report that is a calculated one based on a couple of fields that are already being used in the report. I want it to display in the textbox name

Answer 1

This is an interesting problem, because if you have ONLY 1 data set in your report, you don't need a table, you can directly reference a field that exists in that table.

However, if you have more than 1 data set then you must create a table, which may give you multiple rows. Then you might have to group by this one field, and hide the extra columns and rows. However, you CANNOT display this data in a TEXTBOX, you can however create a rectangle which can hold the table and another textbox. Or display the table directly.