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POCan I get a reference to a pending transaction from a SqlConnection object?
 

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  1. POCan I get a reference to a pending transaction from a SqlConnection object?
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    <p>Suppose someone (other than me) writes the following code and compiles it into an assembly:</p> <pre><code>using (SqlConnection conn = new SqlConnection(connString)) { conn.Open(); using (var transaction = conn.BeginTransaction()) { /* Update something in the database */ /* Then call any registered OnUpdate handlers */ InvokeOnUpdate(conn); transaction.Commit(); } } </code></pre> <p>The call to InvokeOnUpdate(IDbConnection conn) calls out to an event handler that I can implement and register. Thus, in this handler I will have a reference to the IDbConnection object, but I won't have a reference to the pending transaction. Is there any way in which I can get a hold of the transaction? In my OnUpdate handler I want to execute something similar to the following:</p> <pre><code>private void MyOnUpdateHandler(IDbConnection conn) { var cmd = conn.CreateCommand(); cmd.CommandText = someSQLString; cmd.CommandType = CommandType.Text; cmd.ExecuteNonQuery(); } </code></pre> <p>However, the call to cmd.ExecuteNonQuery() throws an InvalidOperationException complaining that </p> <blockquote> <p>"ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized".</p> </blockquote> <p>Can I in any way enlist my SqlCommand cmd with the pending transaction? Can I retrieve a reference to the pending transaction from the IDbConnection object (I'd be happy to use reflection if necessary)?</p>
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