TransactionCompletedEventHandler Delegate
Represents the method that handles the TransactionCompleted event of a Transaction class.
Assembly: System.Transactions (in System.Transactions.dll)
'Declaration Public Delegate Sub TransactionCompletedEventHandler ( _ sender As Object, _ e As TransactionEventArgs _ ) 'Usage Dim instance As New TransactionCompletedEventHandler(AddressOf HandlerMethod)
Parameters
- sender
- Type: System.Object
The source of the event.
- e
- Type: System.Transactions.TransactionEventArgs
The TransactionEventArgs that contains the event data.
The following example shows how an application can obtain the outcome of a transaction by subscribing to the TransactionCompleted event.
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
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
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.