The OdbcConnection draws an open connection from the connection pool if one is available. Otherwise, it establishes a new connection to the data source.
If the OdbcConnection goes out of scope, the connection it represents does not close automatically. Therefore, you must explicitly close the connection by calling Close, Dispose, or by placing the connection within a Using statement.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)