Now available Download the AppFabric WCF Service Template C# Windows Communication Foundation (WCF) is Microsoft’s unified programming model for building service-oriented applications. Windows Server AppFabric provides tools for managing and monitoring...

How should you use WF4 and WCF with ASP.NET?  For this post I’ve created a really simple workflow and WCF service that delay for a specific amount of time and then return a value.  Then I created an ASP.NET page that I can use to invoke the...

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...

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 first behavior covered in this series is the IServiceBehavior . It can be used to inspect or change the...

Windows Communication Foundation (WCF) is Microsoft’s unified programming model for building service-oriented applications. Windows Server AppFabric provides tools for managing and monitoring your web services and workflows. WCF HTTP Service is a service...

The following error might occur when an activity executes: The argument of type '<type>' cannot be used. Make sure that it is declared on an activity. If the type above refers to an implementation child, then it's possible that it's being...

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 first part of this series will focus on the behaviors. There are four kinds of behaviors, depending on the...

The other day, I walked by the office where our team members from Shanghai work while in Redmond and I ran into Leo Shum, a test lead on the new WCF Web HTTP (REST) Test Tool. On this episode, Leo joins me in the studio to show you how this new tool works...

Been a while since our last roundup and since my last blog post for that matter! Fortunately there’s been a bunch of cool stuff going on in the community with our Web APIs that I can point you to. Great to see the community momentum pick up as we cross...

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...

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<>...

Even when AsyncCodeActivity.Cancel is called, the activity will still execute the EndExecute method, so it isn't immediately obvious why a second path of execution is necessary. Implementing this method is useful only when AsyncCodeActivityContext.MarkCanceled...

To access environment information from within an activity, you'll need to use the System.Activities.Hosting.SymbolResolver class. Here's the code to access the symbol resolver from within an activity: public sealed class SymbolUser ...

REST is primarily about 2 things, Resources and Representations. If you’ve seen any of my recent talks you’ve probably seen me open Fiddler and how our ContactManager sample supports multiple representations including Form Url Encoded, Xml, Json and yes...

This refers to the previous version of Workflow, but it came up in a recent discussion, so I thought I'd share the relevant points. When developing a Workflow solution that uses persistence and tracking, you may wonder if you should run the scripts...