Suppress details in main report while both two sub-reports are null

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CrystalReports

I have 2 sub-reports put in the main report, in main report i just showing
ItemCode
ItemName

in Sub-report 1 is to show item count of Inventory transactions in period of time and placed beside ItemCode and ItemName in the details.

Sub-report 2 is to show item count of Production addition in the same period of time used in Sub-report 1, and placed in the details as well.

my problem is all items in the system are showing up in Main-Report details even the both sub-reports have no data, i need to suppress these items, and show only items with data in any of two sub-reports.

i'm using Crystal Reports V 14.1.8

What I have tried:

i've tried to put them in details, or headers but it gives the same problem