Sent Data Selection to a Child Section in RDA

I have two sections in my report. Both have different business views.
The first section ( the parent section) have no CO field in the BV, but the child section have.

In the child section, I hard coded the data selection as CO = 00001,00002 etc. Now the user doesn't want hard coding. She wants to specify the data selection by herself like CO = 00058.

I wonder, how should I do this ?

Option 1
Workfile to store the value read. I've done this in the past be 'cheating' and in your example I'd save off the unique companies I'm reading off to a workfile.

Your second section would then have a new BSVW made up of that workfile linked to your target table on the key fields. Maybe have a job number in there so it's unique and clear it down when finished.
Works well. You can even use this to pass data selection across UBEs too

Only draw back is the 1st section has to finish it's selection

Option 2
Use BSFN Get Runtime Data Selection to find what they entered in the 1st section (in this example I am printing what they entered)

evt_SelectCount_INT01
evt_QuitLoop_EV01
0001 //
0002 If PO cPrintRuntimeDataSel_EV01 is equal to "1"
0003 Get Runtime Data Selection
VA evt_SelectCount_INT01 <> BF nSelectCount
UNDEFINED X BF idSectionID
RV Part 1 <- BF szPart1
RV Part 2 <- BF szPart2
RV Part 3 <- BF szPart3
RV Part 4 <- BF szPart4
VA evt_QuitLoop_EV01 <- BF cQuitLoop
UNDEFINED X BF cSuppressErrorMessage
UNDEFINED X BF szErrorDataItem
UNDEFINED X BF cErrorCode
0004 If VA evt_QuitLoop_EV01 is not equal to "Y"
0005 Do Custom Section(RS Page Break)
0006 Do Custom Section(RS Runtime Data Selection Headings)
0007 While VA evt_QuitLoop_EV01 is not equal to "Y"
0008 Do Custom Section(RS Runtime Data Selection Detail)
0009 Get Runtime Data Selection
VA evt_SelectCount_INT01 <> BF nSelectCount
UNDEFINED X BF idSectionID
RV Part 1 <- BF szPart1
RV Part 2 <- BF szPart2
RV Part 3 <- BF szPart3
RV Part 4 <- BF szPart4
VA evt_QuitLoop_EV01 <- BF cQuitLoop
UNDEFINED X BF cSuppressErrorMessage
UNDEFINED X BF szErrorDataItem
UNDEFINED X BF cErrorCode
0010 End While
0011 End If
0012 End If
0013 //

Great Idea!

I have done using Option 1, which is easy and straight forward.