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Thursday, May 08, 2008 3:21 PM

When not to use transactions and where you can't use transactions

Transactions are great when everyone plays in. You group a set of activities together under a transaction and you start executing them. If anything bad happens along the way or something doesn't go as planned, invoke rollback and all is taking care of
Posted by florinlazar | 0 Comments
Wednesday, May 07, 2008 3:01 PM

MSDTC and COM+ Configuration Tool in Vista

To access the MSDTC and COM+ configuration tool in Windows Vista, also known as Component Services MMC, you have the following options: 1. Run “dcomcnfg” 2. Or run: %SystemRoot%\System32\comexp.msc 3. Or if you prefer, you can add a shortcut to %SystemRoot%\System32\comexp.msc
Posted by florinlazar | 0 Comments
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Tuesday, May 06, 2008 11:58 PM

Exception Handling without catch(Exception)

The design guidelines for exception handling are quite clear on avoiding “catch all” and/or avoiding catching exceptions you can’t handle. But there are cases when you really need to know if the try block completed successfully or not, and possibly take
Posted by florinlazar | 2 Comments
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Tuesday, May 06, 2008 12:54 PM

Working with CMD and Long Path Names

I like using the command prompt for a lot of things and working with long (or very long) path names is something that is common these days. Fortunately, you can customize cmd by using "prompt". Do a “prompt /?” in a command window to see all the options.
Posted by florinlazar | 0 Comments
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Monday, May 05, 2008 3:04 AM

How to Use System.Data with System.Transactions and Maintain Atomicity and Data Consistency

The Bug I call it a bug. Initially I was persuaded to believe it was a feature; later I was "convinced" that it is now a matter of app compat and it can't be changed anymore. Let’s look at the following code: SqlConnection connection1 = new SqlConnection(connectionString);
Posted by florinlazar | 2 Comments
Monday, May 05, 2008 1:38 AM

Limitation of TransactionScope (and using)

If you read the documentation for TransactionScope , you will find: "If no exception occurs within the transaction scope […], then the transaction in which the scope participates is allowed to proceed. If an exception does occur within the transaction
Posted by florinlazar | 0 Comments
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Friday, May 02, 2008 4:02 PM

Avoiding Transaction Promotion with Multiple Connections - Improvements in System.Data and SQL Server 2008

Great news! The new updates added to System.Data and SQL Server 2008 finally allow multiple Open/Close connections to the same SQL Server without promoting the transaction to MSDTC. This was by far the most requested feature for the System.Transactions/System.Data/SQL
Posted by florinlazar | 2 Comments
Monday, March 24, 2008 12:33 PM

A Simpler TransactionScope

In .Net 3.5 I can write a transactional code block as follows: transacted(()=> { using (SqlConnection connection = new SqlConnection(connectionString)) { connection.Open(); SqlCommand command1 = new SqlCommand(commandString1, connection); command1.ExecuteNonQuery();
Posted by florinlazar | 3 Comments
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Wednesday, February 20, 2008 10:36 AM

Flowing or propagating transactions in .Net

System.Transactions transactions are bounded to the appdomain. Which means that if you make in-appdomain calls from inside a TransactionScope, those calls will share the transaction. This also means that if you need to make a call outside the current
Posted by florinlazar | 5 Comments
Tuesday, January 22, 2008 5:10 PM

TIP is now deprecated

TIP is getting deprecated - see the note at http://msdn2.microsoft.com/en-us/library/ms679484(VS.85).aspx If the native OleTx protocol used by MSDTC and System.Transactions is not friendly enough for your firewall, you should consider the WS-AtomicTransactions
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Wednesday, July 11, 2007 11:25 AM

MSDN Magazine Article on Transactional File System

Jason Olson describes the Transactional NTFS and how you can take advantage of it in your applications: http://msdn.microsoft.com/msdnmag/issues/07/07/NTFS/default.aspx
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Wednesday, May 02, 2007 11:27 PM

WCF in Romania

These days I'm in Romania with a tour at 3 universities (in Bucharest, Cluj and Iasi) talking about Windows Communication Foundation, distributed systems and web services. Adi Oltean is also talking about storage technologies in Windows. So far the seminars
Posted by florinlazar | 3 Comments
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Wednesday, March 07, 2007 4:58 PM

"Orcas" March 07 CTP: Support for OASIS WS-AT 1.1 and WS-Coord 1.1

In the "Orcas" March 2007 CTP for Visual Studio and .Net , Windows Communication Foundation brings support for OASIS specifications WS-AtomicTransaction 1.1 and WS-Coordination 1.1 . WCF will have side-by-side support with the 1.0 versions of these specs.
Posted by florinlazar | 3 Comments
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Wednesday, March 07, 2007 4:00 AM

Allowing Transactions into Your Component: "Do you really want that?"

Supporting transactions is part of your component contract. If you shipped a component yesterday that exposed MyComp.DoWork to the public, and today you want to add transactional support to your component, you shouldn't use the same method MyComp.DoWork
Posted by florinlazar | 4 Comments
Saturday, February 10, 2007 5:48 AM

Supporting Promotable Transactions and Phase 0

If you are providing support for promotable transactions for your resource manager using PSPE then you need to remember to "support" Phase 0. In general, a resource manager doesn't need to do anything special about Phase 0; this phase will be handled
Posted by florinlazar | 1 Comments
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