Question

I have not found a specific post here on how to rollback previous operation on sql server if one operation in a set of operations fails.

I have for instance one query to bring some data them I add a row with context.saveChanges(), then perhapes a second and a third insert are performed.

Ok, this last insert fails, so I want to get the db state to the state it was before the three inserts.

I am using EF4, and SQL Server 2008 R2 + Asp Net MVC 4 / C#.

Is transaction the only way to do it?
As thoses operations has been saved one by one (programatically) and not in just one context.saveChange(), I am not sure how to perform the rollback.

Answer 1

You can do “nested transactions” like this using TransactionScope.

Wrap your logic in

using (var transScope = new TransactionScope())
{

    //add something
    context.SaveChanges();

    //do something else
    context.SaveChanges();

    if (foo == bar) //check that it worked fine
    {
        transScope.Commit();
    }
}