Question

I have two different entities of different databases.
In my process I want to manipulate both databases, and the whole process must be in transaction.
I have tried with TransactionScope. It works fine for single entity.

var entity1 = clsProject.GetEntity1();
var entity2 = clsProject.GetEntity2();
System.Transactions.TransactionScope tranScope = new System.Transactions.TransactionScope();
entity1.Connection.Open();
entity2.Connection.Open();

//Do operations
entity1.SaveChanges(false);
entity2.SaveChanges(false);
tranScope.Complete();
entity1.AcceptAllChanges();
entity2.AcceptAllChanges();

But, it raises an error at this line:entity2.Connection.Open();
Error Message: The underlying provider failed on Open.
Inner Exception: The partner transaction manager has disabled its support for remote/network transactions. (Exception from HRESULT: 0x8004D025)

Please give your ideas for this.

Thanks in Advance,

Naresh Goradara

Answer 1

If your second database is on another server you need to turn on Distributed Transaction Coordinator on both servers, and TransactionScope will work.