SqlTransaction after catch transaction connection is null

Question

I have a loop where I call stored procedure with different parameter value. Next call cmd.ExecuteNonQuery(); I use transaction to save all or rollback, and chec

Answer 1

Ran into a similar issue. In my case it was happening for a specific SqlException. Most exceptions would be caught and handled just fine, but whenever I got a conversion error (such as trying to convert a string to a number) it would automatically end the transaction.

To fix this, I had to implement data checking (good idea anyway) prior to building/submitting the command object. Hope this helps others seeing this weird error.

Answer 2

I also met this odd problem (converting nvarchar to integer exception).

In my solution, I rebuild the transacton if found the underlying connection is null. But it's a dirty work.