Using MySQLConnection in C# does not close properly

Question

Final solution:

The connection was added to the connection pool. So I closed it, but it still remained physically open. With the ConnectionString Parameter \"Pooli

Answer 1

Have a look at using something like this:

private static IEnumerable SqlRetrieve(
    string ConnectionString, 
    string StoredProcName,
    Action AddParameters)
{
    using (var cn = new SqlConnection(ConnectionString))
    using (var cmd = new SqlCommand(StoredProcName, cn))
    {
        cn.Open();
        cmd.CommandType = CommandType.StoredProcedure;

        if (AddParameters != null)
        {
            AddParameters(cmd);
        }

        using (var rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection))
        {
            while (rdr.Read())
                yield return rdr;
        }
    }
}