Using only one of the readers works perfectly, but when I use both of readers the following message appear:

There is already an open datareader associated with this command which must be closed first


I have tried to use different connection for each reader, also used MARS = True; in the connection string but non of the solutions worked.

Got any ideas?

Note: the picture is in the attachment
Attached Images
File Type: png QKb55568.png (2.6 KB, 2 views)