How to use TransactionScope in C#?

Question

I am trying to use TransactionScope, but keep getting the exception below.
The app is running on a different machine than the database, if that matters. I

Answer 1

Depending on the backend you are using, TransactionScope often requires the Distributed Transaction Manager to be enabled. Some details are on this MSDN blog.

Also, if you use multiple resources, DTC may be required. Enabling DTC may be required in your situation, or making sure you're using SQL Server 2005 and sticking to what would be doable in lightweight transactions.