Select the transaction isolation level and timeout in a serviced component [ All Languages » VB.net »  COM+] Total Hit ( 2948) Rate this article:     Poor     Excellent   Submit Your Question/Comment about this article Rating

Writing a transactional COM+ component with VB.NET is as simple as applying the Transaction attribute to a class that inherits from System.EnterpriseServices.ServicedComponent: Click here to copy the following block Imports System.EnterpriseServices < Transaction()> Public Class BankTransfer   Inherits ServicedComponent   ' ... End Class If you don't pass any argument to the attribute's constructor, the class is marked as requiring a transaction. You can explicitly set the transaction behavior by passing a TransactionOption enumerated value, which can be Disabled, NotSupported, Supported, Required, and RequiresNew: Click here to copy the following block < Transaction( TransactionOption.RequiresNew )> Even more interesting, you can set the isolation level for the transaction being used, by setting the Isolation property, which in turn can take a TransactionIsolationLevel enumerated value (Any, ReadUncommitted, ReadCommitted, RepeatableRead, or Serializable), and even set the transaction timeout by setting the Timeout property, if you want to override the global timeout value: Click here to copy the following block < Transaction( TransactionOption.RequiresNew, _   Isolation:=TransactionIsolationLevel.Repeatable, Timeout:=10 )>

Related Article(s)

Submitted By : Nayan Patel  (Member Since : 5/26/2004 12:23:06 PM)
	Job Description : He is the moderator of this site and currently working as an independent consultant. He works with VB.net/ASP.net, SQL Server and other MS technologies. He is MCSD.net, MCDBA and MCSE. In his free time he likes to watch funny movies and doing oil painting.
View all (893) submissions by this author  (Birth Date : 7/14/1981 )