EF6事务错误在ObjectContext中

Question

please can someone help i'm trying to use Transaction in EF6. it's my first try in transaction in .net. i have read the manual by Microsoft in their site. http://msdn.microsoft.com/en-us/data/dn456843.aspx and i would to use a transaction for user registration but nothing is working. Im using EF objectContext . here is a little piece of my code :

using (var context= new MyModelContainer())
{ 
 using(var dbContextTransaction = context.Database.BeginTransaction())
      {
       try 
         {
          // code here to create user
          context.savechanges();
          // code here to add role
         context.savechanges();

         dbContextTransaction.Commit(); 
        }
      catch 
         {
         dbContextTransaction.Rollback(); 
         }
     }
}

My problem is that Visual Studio does not even recognize Database.BeginTransaction() . may be because we are using objectContext ? i never use transaction. i change to use another database where our model is DbContext it's seems to work.

How can we use objectContext with transaction also (mean not distributed systems) ? any tutorial please ?

I tried transaction scope but it's seem to work but i read that it's for distributed system ((( it's means that performance going down. any suggestion ? thanks for your time !!!

Answer 1

Replace the line

using(var dbContextTransaction = context.Database.BeginTransaction())

with this:

using(var dbContextTransaction = new TransactionScope())

and remove the call to Rollback. TransactionScore will do what you need.

TransactionScope is compatible with distributed systems, but if you do not make a call to other db's and use it as described, then it is more than good enough for your needs. If you try to make a call to save to another db (for example) then it will require special privileges and an exception will be thrown.