Reporting Services Passing Sum from subreport to Main report

Hello experts,

I have a report that I created with a few subreports.  I would like to pass the sum from various columns in the subreport to the main report to do some calculations.  Is there anyway I can accomplish this?  Either via passing it as a parameter or set a string somewhere and pass that?
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EmesConnect With a Mentor Commented:
If you cut and paste the tables into one report why do you have to recreate the fields?

even if you do I would take the xml code and the do a search and replace on it if you have the same dataset names.

either way I would put everything into one report so you have easy access to all the needed data.
You can do this by selecting the expression component.

Then select the data source you want the sum  from.

Then select the data field.

Please note you can only take sums and first field from another Data source.


holemaniaAuthor Commented:
That would've work if I created multiple datasets within the same report.  However, the way how I create my report, I setup the main report and then from that main report, I created several sub reports.  Each sub report has its own dataset.  Now I can pass the ID from the main report to the other subreports as parameter.  However, I need to pass the sum of these subreports back to the main report for calculations and that's where my problem is.  

I can take each dataset from each of the subreport and put it in the main, but that would mean I have to recreate all the calculated fields and there's a lot of those.  Any thought?  What about property code section?  Can that be done to pass a shared variable?
holemaniaAuthor Commented:
I think it could work if I create everything on the main page.  I'm just used to doing this in crystal report via creating subreport and passing data back and forth.
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