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Crystal Reports Technique: Passing Data from Subreport to Parent

By TJ McDowell

=crystal reports technique subreport parent

On a couple of occasions, we've needed to sum data or concatenate a string within a Crystal Reports subreport, and then pass the data back to the parent report for display. The key to doing this is passing the data in a variable within a Formula Field that exists on both the Crystal Reports subreport and parent report. Follow our method of passing data from subreport to parent report.

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How to Pass the Data

In the subreport, do all your necessary calculations in a Formula Field, which should be added into the Report Footer. Add the following code into the Formula Field:

Shared CurrencyVar grandTotal := {@calculatedSum};

grandTotal;

The Shared qualifier allows you to pass the data through a declared variable. We declared the variable as a CurrencyVar, but you will need to declare your variable with the appropriate type. Other types are StringVar or NumberVar.

You can set the variable to a summed value or another Formula Field.

Now in the parent, add a Formula Field with the same name. Add similar code to access the variable and make sure the variable name is the same.

Shared CurrencyVar grandTotal;

grandTotal;

Now drag the Formula Field onto your report.

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Tags: crystal reports, ERP, Power Tips: Epicor® ERP, Technology Tips & Tricks, Epicor®, Epicor® 9, erp consulting, vantage erp

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