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The SDC conference we organized this year near Amsterdam was a great success with lots of good sessions from excellent speakers . And the speakers seem to love being there as well even though we make them work for a living. Don't believe me? Well...
Part 1 Part 2 Part 3 Part 4 In the previous blog posts we made sure we could have multiple versions of the same workflow running side by side. This ability is one of the more powerful concepts of WF and a real must have for long running business applications...
Part 1 Part 2 Part 3 Part 4 In the first article of this series I demonstrated how to get multiple versions of a workflow running side by side in the same workflow runtime. The most important thing was that you need to keep every version of the assembly...
Part 1 part 2 Part 3 Part 4 You may recall my previous posts about using the TransactionScopeActivity within a ReceiveActivity and all the nasty issues we ran into. Just in case you want to read them again: one , two and three . As it turn out this is...
Part 1 Part 2 Part 3 Part 4 In my previous post I demonstrated how to keep multiple versions of an assembly around and how to use the assemblyBinding element in the app.config to let the runtime load multiple versions of a worklfow. In the end we had...
Part 1 Part 2 Part 3 Part 4 One of the cool features of Windows Workflow Foundation is that it allows long running processes. And not just long running as in a few minutes but really long running as in a few years . This is possible true the use of the...
One powerful feature of a workflow is that a workflow can be changed at runtime. Like other powerful features this is something that should be done with care but it can be a real life saver at times. One of the things that you can change are Declarative...
As far as I am concerned Silverlight 2 is pretty cool and should have been developed years ago . Well guess that isn't the case but it is here now. One thing I like about Silverlight is how easy it is to call a web service. I guess that is a must...
In this post I demonstrated how to create IronPython objects and call them from strongly typed .NET code. So suppose we want to do so with Windows Workflow Foundation where could we use this? Well the most obvious place would be a runtime service . The...
.NET Reflector, by Lutz Roeder, must be one of the most useful tools I have when developing .NET code. Usually it is the first thing I install right after Visual Studio not even waiting until I need it because I know I will. So the big news is that Red...
Want to know what is new in the .NET 3.5 SP1 framework or Visual Studio 2008 SP1? Then check out the presentations and labs here: http://www.microsoft.com/downloads/details.aspx?FamilyID=355C80E9-FDE0-4812-98B5-8A03F5874E96&displaylang=en Overview...
Having worked with Python in the past I find IronPython an interesting language to work with. However the story becomes really interesting if you can combine IronPython with regular strong typed code into one. So I decided to take a look at what it would...
Windows Workflow Foundation, WF for short, is one of the technologies I work a lot with and as a consequence I own several books about WF. Comparing this book with the others I can only say it is one of the best books you can get on the subject. It has...
Part 1 part 2 Part 3 Part 4 In two previous blog posts, part one and part two , I covered the fact that the ReceiveActivity and the TransactionScopeActivity don't work together very well. I demonstrated this using a sequential workflow and did show...
It is available from the subscriptions download at http://msdn.microsoft.com/en-us/subscriptions/default.aspx Get it while it is hot Enjoy!
Part 1 part 2 Part 3 Part 4 In a previous blog post I write about what happens when you place a TransactionScopeActivity within a ReceiveActivity and an exception occurs that is supposed to roll back the transaction. In short the story was very bad and...
Steve Lasker just announced that SQL Server Compact 3.5 service pack 1 is released, read his announcement here . They added support for the entity framework, great stuff. And another neat feature is native 64 bits support. No longer do you need to target...
Part 1 part 2 Part 3 Part 4 I got an email from a friend last week asking about using a ReceiveActivity and, while receiving, using a TransactionScopeActivity to transitionally save some data in a database. Seems like a common enough scenario right? Well...
Afgelopen jaar hebben we het eerste CodeCamp in Nederland georganiseerd en dat was een groot succes. De meeste deelnemers vroegen om meer, sommige zelfs om een CodeCamp per kwartaal of een heel weekend lang. Nou hebben we dat laatste nog niet gedaan maar...
I have just updated the SQL Server Compact Workflow Persistence Service to better handle deserialization issues when loading a workflow. The service now makes sure the WorkflowRuntime ServicesExceptionNotHandled is raised, something it should have done...
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