how to share a transaction in two dbContext with EF6?

问题

I am using EF6 and I know that has two methods to use a transaction, BeginTransaction and UseTransaction.

I use to use only one dbContext, but in my case, I need to use an auxiliar dbContext and I need that this second dbContext use the same transaction that the main one. I try to use this code:

using(Entities miDbContext = new Entities())
{
    using (DbContextTransaction miTransaccion = miDbContext.Database.BeginTransaction())
    {
        Entities miDbContext2 = new Entities();
        miDbContext2.DataBase.UseTransaction(miTransaccion);
    }
}

But I get an error in the UseTransaction because miTrasaccion is not of the correct type.

I would like to know how I can shared the same transaction between two dbContexts.

Thanks.

回答1:

You need to pass the connection of miDbContext to miDbContext2 first.

Try the below code. It should work.

Entities miDbContext2 = new Entities(miDbContext.Database.Connection, false);
miDbContext2.DataBase.UseTransaction(miTransaccion);

回答2:

To add to SajidQ's answer with the better syntax

  miDbContext2.Database.UseTransaction(dbContextTransaction.UnderlyingTransaction);

来源：https://stackoverflow.com/questions/20382070/how-to-share-a-transaction-in-two-dbcontext-with-ef6