Over the last year you’ve heard us talking about both Windows Azure AppFabric and Windows Server AppFabric. Today we are adding our final post to the .NET endpoint team blog and announcing the new AppFabric Team blog . This blog will be the home...

A few folks have been asking if it is possible to serialize/deserialize using the DataContractSerializer. Rest assured, yes it is possible. Now whether or not it is the easiest/most intuitive model well that it is a different question. If you read to...

tempuri.org is the default namespace applied to WCF Services and Workflow Services.  You can and should specify your service namespace. It is recommended that you explicitly specify a name and namespace for the service contract, and an action for...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . We’re now entering the realm of the less used extensibility points for the WCF runtime. Operation selectors...

When designing a custom activity that can be used as a container for other activities, you may want to restrict the activity user to a certain set of activities. If the custom activity can only accept a single type, this can be implemented quite simply...

When I first saw NuGet I knew I had to find a way to take advantage of this great new way to deliver code to you.  It took a few months but finally the other day I decided to spend an afternoon working on a NuGet package for Microsoft.Activities...

A few customers have noticed an issue with WCF scaling up when handling a burst of requests. Fortunately, there is a very simple workaround for this problem that is covered in KB2538826 (thanks to David Lamb for the investigation and write up). The KB...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . Message formatters are the component which do the translation between CLR operations and the WCF Message...

Humans Go to Control Panel / Programs / Programs and Features / View Installed Updates Use the Search Box to search the updates for KB2495593 KB2478063 Or if you prefer, search the list your self Microsoft .NET Framework 4 Platform...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . The message inspectors, described in the previous post of this series, allows you complete control over the...

The workflow designer has a rich programming model that supports communication with the host. A rehosted workflow designer will automatically validate a workflow when it is changed; in order to programmatically call validation on demand on a rehosted...

Sometimes when using Windows Workflow Foundation (WF4) you need to create a custom WorkflowServiceHostFactory. There are a couple of main reasons why you would want to do this. To configure the WorklfowServiceHost in some way like adding an extension...

MIX was indeed a busy time for the WCF Team. We delivered several talks, and released several shiny new toys to the community for folks that are building web-based systems. WebSockets Craig Kitterman of our Interoperability group, and Paul Batum...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . The message inspectors are probably the most used extensibility points of the WCF runtime. Anytime you need...

State machine is a well-known model for event-driven workflows and a highly requested feature from our WF4 users, especially those looking to move their WF3 State Machine workflows to WF4. We are very pleased to provide a new, fully-supported, WF4 State...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . Before starting on the actual extensibility points for the WCF runtime (first post should be online tomorrow...

The Microsoft .NET Framework 4 Platform Update 1 released today, 4/18/2011. The Microsoft .NET Framework 4 Platform Update 1 is a platform update that is a set of new features that provides additional functionality for top customer requests and important...

Most of the Windows Workflow Foundation samples use workflows that are hosted in a console application, but this isn't a realistic scenario for real-world workflows. Workflows in actual business applications will be hosted in persistent processes- either...

In my investigation of versioning issues with Windows Workflow Foundation I’ve come to one important conclusion.  This isn’t something new, in fact at TechEd 2008 when I gave my very first “chalk talk” about WF3.5 I said that this issue (versioning...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . The last of the behavior interfaces in WCF is the IOperationBehavior . The scope of this one is limited to...

Update: This went live 4/18/2011, and there are more details here: Microsoft .NET Framework 4 Platform Update 1 On March 25 th at his Tech-Ed India keynote Jason Zander announced some great new resources for developers. Our team has been working hard...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . The next behavior in the list is the IEndpointBehavior . Like the other ones, it can be used to inspect and...

I don’t remember anyone ever actually asking me this, but I found myself wondering the question while rustling up a quick rehosting app. Foreach<> activity lets you change the TypeArgument dynamically via the property grid. But FlowSwitch<>...

Last year we at PDC10 we gave you a preview of the next release of Windows Workflow Foundation.  The video has just been posted to Channel 9. Windows Workflow Futures Speaker: Ron Jacobs Learn about the key investments we’re making in Windows Workflow...

This post is part of a series about WCF extensibility points. For a list of all previous posts and planned future ones, go to the index page . Going down the list of behaviors, the second one to be covered is the IContractBehavior . Like the other...