endpoint.tv – A Better State Machine Driven WPF UI

I couldn’t leave this one alone.  While I was making the last episode I said that there was possibly another strategy for detecting states and transitions and that was to use Tracking data.  In this episode I’ll show you a better way to implement our WPF UI using the Model View View-Model (MVVM) pattern that…


New Release Microsoft.Activities.UnitTesting 1.71

Just posted a new release of Microsoft.Activities.UnitTesting This release incorporates the Task Parallel Library to greatly simplify test code. Episodes You can now create a task that will run an episode of work in the workflow. An episode is simply a pulse of work that the workflow runs. For example an episode might look like…

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How to consume a WCF Service from a WF4 Workflow

Recently I saw a message on the WF4 Forum where someone was asking for help learning how to consume a WCF service from a Workflow. In this post I’m going to walk through how you can consume a WCF service from a Workflow where both the service and the workflow live in the same web…

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New WF4 Caching Activities for Windows Server AppFabric

I’m happy to announce that we have just posted a “Labs” release on our http://wf.codeplex.com site with some new Caching Activities.  These activities work with Windows Server AppFabric Caching making it possible for you to use the cache directly from your workflow In this example I’m implementing the “Cache Aside” pattern where I first try…


Want to Learn Windows Workflow Foundation (WF4)?

Here are some great resources to get you started. Intro the WF4 Hands On Lab Introduction to State Machine Hands On Lab Intro to Workflow Services / AppFabric Hands On Lab (Part of the Visual Studio 2010 Training Kit) Check out the Contoso HR Workflow Services Sample endpoint.tv – countless episodes of video goodness WF/WCF/AppFabric…


endpoint.tv – WF4 / AppFabric Contoso HR Sample

Wondering what the big deal is about Workflow?  Wondering how you can use it to support a long running process in a web application? Want to see how Windows Server AppFabric can help? In this episode I’ll show you the Contoso HR sample application which demonstrates a Workflow Service that coordinates a job application process. Download WF4…

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endpoint.tv – AppFabric Caching vs. IBM eXtreme Scale benchmark

Greg Leake has been at it again.  He has emerged from his lab with the latest results of benchmark testing of Windows Server AppFabric Caching vs. IBM eXtreme Scale and the results are something you definitely want to see. Microsoft® Windows® Server AppFabric vs. IBM® WebSphere® eXtreme Scale 7.1 Benchmark Report Ron Jacobsblog        http://blogs.msdn.com/rjacobstwitter    @ronljacobs


endpoint.tv – WF4 Activities, Callbacks and Event Handlers

Suppose you want to create a workflow that needs to wait on a CLR event or callback.  In this episode I’ll show you how to create an Activity and a Workflow Extension that implements IWorkflowInstanceExtension to create an activity that can safely deal with CLR events. More Ron Jacobs Blog – WF4 Activities and Callbacks /…


WF4 Activities and Callbacks / Event Handlers

Recently David K contacted me through my blog and shared with me a solution that he came up with for a particular problem that he was able to solve using IWorkflowInstanceExtension and said it would be great if I could do an endpoint.tv episode about it.  David already solved his problem but he wanted to…


endpoint.tv – Unit Testing Workflows

  When we asked you what you wanted to see on endpoint.tv, one of the top three most requested topics was How to Unit Test Workflows. On this episode, I’ll show you how to test Simple activities using WorkflowInvoker Complex activities with bookmarks and WorkflowApplication WorkflowServices with Extensions Links from this episode Workflow Test Helper (MSDN…