TransactionCompletedEventHandler TransactionCompletedEventHandler TransactionCompletedEventHandler TransactionCompletedEventHandler Delegate

Definition

Represents the method that handles the TransactionCompleted event of a Transaction class.

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 Object Object Object

The source of the event.

Inheritance
TransactionCompletedEventHandlerTransactionCompletedEventHandlerTransactionCompletedEventHandlerTransactionCompletedEventHandler

Examples

The following example shows how an application can obtain the outcome of a transaction by subscribing to the TransactionCompleted event.

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

Extension Methods

GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate) GetMethodInfo(Delegate)

Gets an object that represents the method represented by the specified delegate.

Applies to