Output parameters not updated after ExecuteReader()

Question

When I run cmd.ExecuteScalar() or cmd.ExecuteNonQuery() the Output and InputOutput parameters on the command object get updated from the changes in the stored procedure. However the same does not happen for cmd.ExecuteReader(). This is happening on both Sql Server and MySql Connections. Is this behavior by design?

Answer 1

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It appears this can possibly be an issue under certain circumstances.