Error on using TransactionScope in EF4 & SQL Compact 4

Question

using (TransactionScope scope = new TransactionScope())
using (var context = new dwfEntities())
{
  var field = (from x in context.DynFields where x.Id == id select          


        

Answer 1

If the connection is opened outside of the transaction scope you need to explicitly call EnlistTransaction. You cannot implicitly use a connection with a transaction scope in SQL CE as described here