Using NULL to Close the DB connection after Close()

[ragavan]

Hi I open a DB connection using the _ConnectionPtr pointer. After using the connection I call the Close() and set the pointer to NULL. When I set the pointer to NULL an exception is generated. Pleae let me know is it really required to set the object to NULL after Close(). Thanks in Advance

[myshketer]

I found an example in MSDN 2003 where NULL setting object omited. The sample name is "ConnectionString, ConnectionTimeout, and State Properties Example (VC++)"