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Altova User Forums » Product/Technology Discussions » MapForce & MapForce Server » There is already an open DataReader associated with this Command which must be closed first.

There is already an open DataReader associated with this Command which must be closed first.

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TBlackbird

Posted: Friday, July 11, 2014 7:15:41 PM

Rank: Member

Joined: 1/16/2008
Posts: 14

I have a mapforce diagram that is going from a view in oracle to multiple XML files. The rows are gathered into separate files by two fields in the view. I have it working perfectly in mapforce itself, however whenever I generate C# code, I always get the above error. Anyone have similar experience or a solution?

Thanks

TBlackbird

Posted: Wednesday, July 30, 2014 1:03:48 PM

Rank: Member

Joined: 1/16/2008
Posts: 14

FYI:

It is related to the group-by component. It appears to only occur when using ODBC. Switching to ADO fixes the problem.

Hope that helps someone else...

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