static async Task TransactionPromotionsAsync()
{
var tx = new CommittableTransaction();
DisplayTransactionInformation("TX created", tx.TransactionInformation);
try
{
var b = new Book
{
Title = "A Cat in The House",
Publisher = "Pet Show",
Isbn = string.Join("", Guid.NewGuid().ToString().ToCharArray().Take(15)),
ReleaseDate = new DateTime(2019, 11, 24)
};
var data = new BookData();
await data.AddBookAsync(b, tx);
DisplayTransactionInformation("First Connection", tx.TransactionInformation);
var b2 = new Book
{
Title = "A Rabbit in The House",
Publisher = "Pet Show",
Isbn = string.Join("", Guid.NewGuid().ToString().ToCharArray().Take(15)),
ReleaseDate = new DateTime(2020, 11, 24)
};
var data2 = new BookData();
await data2.AddBookAsync(b2, tx);
DisplayTransactionInformation("Second Connection", tx.TransactionInformation);
if (AbortTx())
{
throw new ApplicationException("transaction abort by the user");
}
tx.Commit();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine();
tx.Rollback();
}
DisplayTransactionInformation("TX completed", tx.TransactionInformation);
}
static void NestedScopes()
{
using (var scope = new TransactionScope())
{
Transaction.Current.TransactionCompleted += (sender, e) =>
DisplayTransactionInformation("TX completed", e.Transaction.TransactionInformation);
DisplayTransactionInformation("Ambient TX created", Transaction.Current.TransactionInformation);
var b = new Book
{
Title = "Dogs in The House",
Publisher = "Pet Show",
Isbn = RandomIsbn(),
ReleaseDate = new DateTime(2020, 11, 24)
};
var data = new BookData();
data.AddBook(b);
using (var scope2 = new TransactionScope(TransactionScopeOption.RequiresNew))
{
Transaction.Current.TransactionCompleted += (sender, e) =>
DisplayTransactionInformation("Inner TX completed", e.Transaction.TransactionInformation);
DisplayTransactionInformation("Inner TX scope", Transaction.Current.TransactionInformation);
var b1 = new Book
{
Title = "Dogs and Cats in The House",
Publisher = "Pet Show",
Isbn = RandomIsbn(),
ReleaseDate = new DateTime(2021, 11, 24)
};
var data1 = new BookData();
data1.AddBook(b1);
scope2.Complete();
}
scope.Complete();
}
}
