Assembly: System.Data (in system.data.dll)
A reference to an existing ITransaction in which to enlist.
New in ADO.NET 2.0 is support for using the EnlistTransaction method to enlist in a distributed transaction. Because it enlists a connection in a Transaction instance, EnlistTransaction takes advantage of functionality available in the System.Transactions namespace for managing distributed transactions, making it preferable to EnlistDistributedTransaction for this purpose. For more information, see Performing a Distributed Transaction.
You can continue to enlist in an existing distributed transaction using the EnlistDistributedTransaction method if auto-enlistment is disabled. Enlisting in an existing distributed transaction makes sure that, if the transaction is committed or rolled back, modifications made by the code at the data source are also committed or rolled back.
EnlistDistributedTransaction returns an exception if the SqlConnection has already started a transaction using BeginTransaction. However, if the transaction is a local transaction started at the data source (for example, by explicitly executing the BEGIN TRANSACTION statement using an SqlCommand object), EnlistDistributedTransaction rolls back the local transaction and enlists in the existing distributed transaction as requested. You do not receive notice that the local transaction was rolled back, and are responsible for managing any local transactions not started using BeginTransaction.
Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter EditionThe Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.