Troubleshooting Exceptions: System.Data.OleDb.OleDbException
Visual Studio 2010
An OleDbException exception is generated when a warning or error is returned by an OLE DB data source.
Remarks
This exception is thrown whenever the .NET Framework Data Provider for OLE DB encounters an error generated by the server.
If the severity of the error is too great, the server may close the OleDbConnection. However, the user can reopen the connection and continue.