TransactionCompletedEventHandler Gedelegeerde

Definitie

Naamruimte:
System.Transactions
Assembly:
System.Transactions.dll
Assembly:
netstandard.dll

Vertegenwoordigt de methode die de TransactionCompleted gebeurtenis van een Transaction klasse afhandelt.

public delegate void TransactionCompletedEventHandler(System::Object ^ sender, TransactionEventArgs ^ e);
public delegate void TransactionCompletedEventHandler(object sender, TransactionEventArgs e);
type TransactionCompletedEventHandler = delegate of obj * TransactionEventArgs -> unit
Public Delegate Sub TransactionCompletedEventHandler(sender As Object, e As TransactionEventArgs)

Parameters

sender
Object

De bron van de gebeurtenis.

e
TransactionEventArgs

De TransactionEventArgs gegevens die de gebeurtenisgegevens bevatten.

Voorbeelden

In het volgende voorbeeld ziet u hoe een toepassing het resultaat van een transactie kan verkrijgen door u te abonneren op de TransactionCompleted gebeurtenis.

static void Main(string[] args)
{
    try
    {
        //Create the transaction scope
        using (TransactionScope scope = new TransactionScope())
        {
            //Register for the transaction completed event for the current transaction
            Transaction.Current.TransactionCompleted += new TransactionCompletedEventHandler(Current_TransactionCompleted);

            //Call complete on the TransactionScope based on console input
            ConsoleKeyInfo c;
            while (true)
            {
                Console.Write("Complete the transaction scope? [Y|N] ");
                c = Console.ReadKey();
                Console.WriteLine();

                if ((c.KeyChar == 'Y') || (c.KeyChar == 'y'))
                {
                    scope.Complete();
                    break;
                }
                else if ((c.KeyChar == 'N') || (c.KeyChar == 'n'))
                {
                    break;
                }
            }
        }
    }
    catch (System.Transactions.TransactionException ex)
    {
        Console.WriteLine(ex);
    }
    catch
    {
        Console.WriteLine("Cannot complete transaction");
        throw;
    }
}

//Transaction completed event handler
static void Current_TransactionCompleted(object sender, TransactionEventArgs e)
{
    Console.WriteLine("A transaction has completed:");
    Console.WriteLine("ID:             {0}", e.Transaction.TransactionInformation.LocalIdentifier);
    Console.WriteLine("Distributed ID: {0}", e.Transaction.TransactionInformation.DistributedIdentifier);
    Console.WriteLine("Status:         {0}", e.Transaction.TransactionInformation.Status);
    Console.WriteLine("IsolationLevel: {0}", e.Transaction.IsolationLevel);
}

Public Shared Sub Main()
    Try
        Using scope As TransactionScope = New TransactionScope()

            'Register for the transaction completed event for the current transaction
            AddHandler Transaction.Current.TransactionCompleted, AddressOf Current_TransactionCompleted

            'Perform transactional work here.

            'Call complete on the TransactionScope based on console input
            Dim c As ConsoleKeyInfo
            While (True)

                Console.Write("Complete the transaction scope? [Y|N] ")
                c = Console.ReadKey()
                Console.WriteLine()
                If (c.KeyChar = "Y") Or (c.KeyChar = "y") Then
                    scope.Complete()
                    Exit While
                ElseIf ((c.KeyChar = "N") Or (c.KeyChar = "n")) Then
                    Exit While
                End If
                
            End While

        End Using
    Catch ex As TransactionException
        Console.WriteLine(ex)
    Catch
        Console.WriteLine("Cannot complete transaction")
        Throw
    End Try
End Sub

'Transaction completed event handler
Private Shared Sub Current_TransactionCompleted(ByVal sender As Object, ByVal e As TransactionEventArgs)
    Console.WriteLine("A transaction has completed:")
    Console.WriteLine("ID:             {0}", e.Transaction.TransactionInformation.LocalIdentifier)
    Console.WriteLine("Distributed ID: {0}", e.Transaction.TransactionInformation.DistributedIdentifier)
    Console.WriteLine("Status:         {0}", e.Transaction.TransactionInformation.Status)
    Console.WriteLine("IsolationLevel: {0}", e.Transaction.IsolationLevel)
End Sub

Extensiemethoden

Name Description
GetMethodInfo(Delegate)

Hiermee haalt u een object op dat de methode vertegenwoordigt die wordt vertegenwoordigd door de opgegeven gemachtigde.

Van toepassing op