After about three months in the field talking with ISV partners, enterprise developers and developers in general, I’ve noticed a couple of Azure misconceptions that seem to be recurring, so I thought I’d post something here for people to find to try to correct that. Myth #1: “Azure is from Microsoft so it’s something that only .NET developers can use” Actually, anything that runs in Windows will run on Azure. Microsoft’s goal is to provide the best cloud platform, PERIOD, regardless of your choice...

Remember the 4 tenets of SOA?  One of them is that Boundaries are explicit.  When somebody sends data to your service it is just like when you cross an international border into another country.  Just a couple of hours drive north of us in Redmond is the border crossing to Canada.  When you cross into Canada or back into the United States you have to stop your car and the border agents do their job.  Their job is to make sure that you have proper documentation and that you...

Ready to have some fun… Today I spent the day investigating WCF FaulContracts and FaultException and some best practices for argument validation.  I’m going to do the same in a future post on Workflow Services but I felt it best to really understand the topic from a WCF point of view first. Investigation Questions What happens when a service throws an exception? What happens if a service throws a FaultException? What happens if the service operation includes a FaultContract and it throws a FaultException<TDetail>...

This morning I’ve been working on how to support cancelling a workflow via a CancellationToken.  The details of that are not important right now but what is really cool is how I was able to test this. Scenario: Caller requests Cancellation via a CancellationToken and the UnhandledExceptionAction is Cancel Given An activity that contains a CancellationScope The CancellationScope body has an activity that will create a bookmark and go idle The CancellationScope has a CancelHandler with a WriteLine...

Ken Levy recently interviewed me for CodeCast on the state of Windows Workflow Foundation 4 and the AppFabric for hosting your workflow services. Its episode 99, I wonder what they are planning for episode 100. You can download the episode here or through iTunes.   Enjoy! www.TheProblemSolver.nl Wiki.WindowsWorkflowFoundation.eu Blog Post by: Maurice