How to activate a different sub-report for each row in the data set as main report page breaks on each row of data in the main dataset

Question

I am going to try asking this same question a different way as I have yet to find a working solution to my problem.  I have a main report and then 8 sub reports.  My main report has one data set and returns one row of data per account number.  One
of the fields in the main data set is called AccountProf.  My main report displays one page per Account number and then calls a different sub report based on that account's AccountProf value.  The sub reports take in the account number as a parameter
and get multiple rows of data to display that accounts usage formatted differntly for each AccountProf (hence the 8 different sub report.  
So far I can figure out how to do everything but setting the visibility property of each sub-reports when I have multiple accounts.  If I use the following expression for the visibility property on each sub report, it makes all the applicable sub report
for all the accounts requested visible at once:
=IIF(Fields!AccountProf.Value= "USE_PLUS_DMD",False,True)
*The value in bold USE_PLUS_DMD  is different for each sub report.
Here is a look at what the main report look like:
Here is the main reports data set:

Answer 1

Hi JasonDWilson77,
According to your description, there is a main report and 8 sub reports in the report, you want to set visibility of sub reports, if no value is passed to the parameter of sub report, the sub report will not be displayed. If that is the case, please refer
to the following steps:
  1. Create a new parameter named NewAccountNumber, set its data type the same as @AccountNumber, select Allow multiple values, set Visibility to be hidden, then set all available values to default values.
  2. Right-click the first sub report and open Subreport Properties dialog box, click Parameters in left pane, set name to AccountNumber, then click (fx) button, type the expression like below:
=Parameters! NewAccountNumber(0)
  3. Click Visibility in left pane, select Show or hide based on an expression, then click (fx) button and type the expression like below:
=IIF(InStr(Join(Parameters! AccountNumber.Value), Parameters!NewAccountNumber.Value(0))>0 , false,true)
  4. Modify parameter of other sub reports like step2.
  5. Set visibility of other sub reports like step3.
If you have any more questions, please feel free to ask.
Thanks,
Wendy Fu
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