How to use Application Roles with Entity Framework

Question

How does one call sp_setapprole before a connection used by an Entity Framework object context closes, since the context opens and closes its own connection automatically, as needed? The only relevant event available on a store connection
(DbConnection ) is StateChange , which does not include a
ConnectionState of Closing . Attempting to call
sp_setapprole when ConnectionState is Closed results in, "A severe error occurred on the current command. The results, if any, should be discarded."

Answer 1

Yes, I realize that I need to call sp_setapprole on an open connection and that I can use
ExecuteNonQuery or similar mechanisms. What I need to determine is how to do this
automatically while using the entity framework.
As I mentioned in my initial inquiry, the EF store connection, which is simply a DbConnection under the covers, does not expose an event (such as Closing) that would allow me to invoke
sp_setapprole before a connection is closed. The only close event we are given is
Closed , which is too late to do any good. I'm hoping to avoid burdening our systems with having to manually manage the connection.