How to retrieve data from Oracle package using C#.net 2.0?

[michael Tun]

How can I retrieve data from oracle package.

OracleCommand command = new OracleCommand("STAFF_SELECT", connection);
        command.CommandType = CommandType.StoredProcedure;

STAFF_SELECT is package.
Error says that STAFF_SELECT is not storedprocedure or undefined . . . .

So How can I retrieve data from oracle package.