public static void TransactionScopeSimple()
{
using (var scope = new TransactionScope())
{
Transaction.Current.TransactionCompleted += Current_TransactionCompleted;
TxUtilities.DisplayTransactionInformation("Ambient TX created", // Охватывающая транзакция создана
Transaction.Current.TransactionInformation);
var firstStudent = new Student
{
FirstName = "Angela",
LastName = "Nagel",
Company = "Kantine M101"
};
var studentData = new StudentData();
studentData.AddStudent(firstStudent);
if (!TxUtilities.AbortTransaction())
{
scope.Complete();
}
else
{
Console.WriteLine("Transaction will be aborted"); // Транзакция будет прекращена
}
}
}
static void DependentTransaction()
{
var commitTx = new CommittableTransaction();
TxUtilities.DisplayTransactionInformation("Root TX Created", commitTx.TransactionInformation);
try
{
// NOTE: Создаем зависимую транзакцию
Task.Factory.StartNew(TxTask, commitTx.DependentClone(DependentCloneOption.BlockCommitUntilComplete));
if (TxUtilities.AbortTransaction())
{
throw new ApplicationException("transaction abort");
}
commitTx.Commit();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
commitTx.Rollback(ex);
}
TxUtilities.DisplayTransactionInformation("TX finished", commitTx.TransactionInformation);
}
private static async Task CommittableTransactionAsync()
{
var committableTransaction = new CommittableTransaction();
TxUtilities.DisplayTransactionInformation(
"TX created", committableTransaction.TransactionInformation);
try
{
var student = new Student
{
FirstName = "Stephanie",
LastName = "Nagel",
Company = "CN innovation"
};
var studentData = new StudentData();
await studentData.AddStudentAsync(student, committableTransaction);
if (TxUtilities.AbortTransaction())
{
throw new ApplicationException("Transaction abort"); // транзакция прервана
}
committableTransaction.Commit();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine();
committableTransaction.Rollback(/*ex*/);
}
TxUtilities.DisplayTransactionInformation(
"TX completed", committableTransaction.TransactionInformation);
}
static void TxTask(object state)
{
var depTx = state as DependentTransaction;
if (depTx == null)
{
return;
}
TxUtilities.DisplayTransactionInformation("Dependent Transaction", depTx.TransactionInformation);
Thread.Sleep(3000);
depTx.Complete();
TxUtilities.DisplayTransactionInformation("Dependent Transaction Complete", depTx.TransactionInformation);
}
