Retrieve data selection variable

JMR said:

I eyeballed it and it looks ok. As for how pVoid can be NULL... the only thing that comes to mind is if the bsvw attached to the section is a join view and the current selectstruct is one of the join criteria.

You should probably just ignore the rest of the code if pVoid is NULL after that assignment.

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Just wanted to give you an update. I think your explanation is accurate. The structure can be null if the BSVW attached to the section is a join view and the selectstruct is one of the criteria for the selection. In the few examples I found, this was the case in each. It may be simply a limitation of the BLOB data extraction, and I can live with it.

Since there was no good way to check for Section ID's and verify their existence, I added a while loop in the UBE to run the Data Selections BSFN for Section ID's 1-15. I found some maybe-reliable information that the maximum possible Section ID was 42, but I manually looked at a few dozen and couldn't find any UBE in our environment with a Section ID greater than 10. The BSFN will close if the Section ID/Program ID/Version does not exist, so while this is greatly slows down the speed of the UBE it is proving to be pretty accurate. I could bump up the loop beyond 15 if I found an exception.

I also built an application to view the Data Selections data and display it in plain text in a Static Field. So far our BSAs are liking the results and it should help our environment upgrade.

Thank you very much for the solution and for your help, everyone.