Ron Jacobs

Windows Workflow Foundation

Posts
  • Ron Jacobs

    AppFabric WCF DataService (C#)

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    Today I’m happy to announce the availability of a new Feature Builder based template for Windows Server AppFabric and WCF Data Services. This template is an evolution of the previous AppFabric-enabled WCF Data Service (C#) template. ...
  • Ron Jacobs

    How to make a WorkflowService implement a contract

    • 2 Comments
    You may have noticed that WorkflowServices have two ways of operating.  One way is to pass message content and the other way is to use message parameters.  I have always used message content because it seemed like the easiest thing to do. Download...
  • Ron Jacobs

    Testing a WorkflowService .xamlx file with Visual Studio

    • 2 Comments
    One thing I have not tackled until today was how to test a Workflow Service in a .xamlx file.  When I started out this morning working on it I realized that there isn’t a great deal of information about how to do this available anywhere. Update 7...
  • Ron Jacobs

    The Canonical REST Entity Service

    • 13 Comments
    Recently I was doing a review of some .NET 3.5 WCF REST code based on the REST Starter Kit to see what it would take to move it to .NET 4. The more I looked at the code and thought about it deeply I realized that the mechanics of exposing a service over...
  • Ron Jacobs

    New Hands On Lab - Introduction to WF4

    • 1 Comments
    A couple of weeks ago I ran across a very interesting tool called Feature Builder .  As I watched the videos about this tool I realized that it represented an opportunity to deliver Hands on Labs (along with other interesting things) directly inside...
  • Ron Jacobs

    WF4 Activities Best Practices

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    Lately on http://endpoint.tv we have been doing a series called WF4 Activities Best Practices with Leon Welicki. Many of you wrote in asking for the sample code so I’ve published on MSDN Code Gallery - WF4 Activity Best Practices Sample . Be...
  • Ron Jacobs

    Stepping Through .NET Source with VS2010 and .NET 4

    • 4 Comments
    This morning I stumbled across something so cool… I had no idea it existed (I know some of you are saying… “What he didn’t know about this?) How many times have you wanted to debug right into the source of .NET?  The feature is there, just turn it...
  • Ron Jacobs

    WF Tip: Use a StringWriter to capture WriteLine Activity output when testing

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    Question: Suppose you want to test an activity that uses WriteLine and you want to verify the output. How do you do it? Answer: Add a StringWriter to the Extensions collection before running your test Testing this activity Use this test ...
  • Ron Jacobs

    System.Web.Routing RouteTable not working with IIS?

    • 6 Comments
    Most of the time I write simple apps that run in the local ASP.NET development server. I noticed when I started working with IIS more because of Windows Server AppFabric that my routes were not working when the web application is deployed in IIS. For...
  • Ron Jacobs

    AppFabric-enabled WCF Data Service Walkthrough (C#)

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    In this walkthrough I’ll show you how to use the AppFabric-enabled WCF Data Service (C#) template for Visual Studio 2010 to enhance your WCF Data Services by providing Monitoring events and errors to the AppFabric Data Store Eliminating...
  • Ron Jacobs

    AppFabric-enabled WCF Data Service Walkthrough (VB)

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    In this walkthrough I’ll show you how to use the AppFabric-enabled WCF Data Service (VB) template for Visual Studio 2010 to enhance your WCF Data Services by providing Monitoring events and errors to the AppFabric Data Store Eliminating the need to use...
  • Ron Jacobs

    AppFabric-enabled WCF Data Service Templates (C#/VB)

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    After working out how to do the right thing when using WCF Data Services with Windows Server AppFabric I’ve now created a template you can use directly from Visual Studio. The templates are available from Visual Studio Gallery or directly from within...
  • Ron Jacobs

    Make WCF Simpler

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    If there is one thing I hear from people over and over again it is this. Please make WCF simpler, easier to understand and use. I totally agree with this sentiment. In fact, in .NET 4 we made it much easier but we still have a long way to go. Once in...
  • Ron Jacobs

    endpoint.tv - Workflow Messaging Architecture with Dave Cliffe

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    In this episode, Dave Cliffe, Program Manager for Workflow Services, describes the architecture of the Workflow Services infrastructure. For more information, see the Workflow Foundation developer center on MSDN .
  • Ron Jacobs

    Watch Out! Overloading Constructors on XAML based Activities

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    This morning I was refactoring some code and I decided to create a partial class with an overloaded constructor. When I did this, suddenly everything quit working. My tests were failing as though the workflow didn’t even run but no exceptions were...
  • Ron Jacobs

    Need Help Moving from WF 3.5 to WF 4?

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    Here are some helpful resources Windows Workflow Foundation (WF) Migration Guidance for WF 4 This Code Gallery project contains the code samples to help .NET developers better understand and evaluate Windows Workflow Foundation (WF) in the Microsoft...
  • Ron Jacobs

    Designers for Custom Activities

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    Morgan Skinner created a great post describing how you can associate designers with custom activities.  Check it out here .
  • Ron Jacobs

    Ron Jacobs Tech-Ed North America Sessions

    • 1 Comments
    My Tech-Ed (or is it TechEd?) sessions are now available The Total Noob’s Guide Windows Workflow Foundation 4 Don’t know a thing about Windows Workflow Foundation (WF4) in Microsoft .NET Framework 4, but want to learn? No problem. Join us for this session...
  • Ron Jacobs

    Working with OutArgument<T> in Workflow

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    If you want to assign a value to an OutArgument in your workflow here is something you need to keep in mind. If your OutArgument is something simple like a value type or a string you can simply write to it directly If your OutArgument is something...
  • Ron Jacobs

    New Native Activity Item Templates for Visual Studio 2010

    • 1 Comments
    I’ve been creating a lot of Native Activities lately and to do it I would add a new item to my project using the Code Activity template. I kept wishing for a Native Activity template so now I’ve created one. Install the Native Activity...
  • Ron Jacobs

    First Wave of AppFabric Patches

    • 0 Comments
    Thanks to Damir Dobric You might want to pick up these patches KB980423 FIX: You experience several issues when you use Powershell cmdlets or AppFabric features in IIS 7.0 or IIS 7.5 KB983484 Some services are preloaded unexpectedly when you start a website...
  • Ron Jacobs

    CancellationScope Activity Updated for .NET 4 RTM

    • 1 Comments
    Update: 6/24 – updated sample to show how unhandled exceptions and the UnhandledException delegate impact this activity Nearly a year ago I created a CancellationScope Activity sample and posted it on CodeGallery for .NET 4 Beta 1.   I went...
  • Ron Jacobs

    endpoint.tv - How to Do API Key Verification with a WCF WebHttp (REST) Service

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    In .NET 3.5, we created the REST Starter Kit as a way to get you up and running with RESTful services. Now that .NET 4 is out, people are asking how to do things like API Key Verification in .NET 4. In this episode, I'll walk you through a sample based...
  • Ron Jacobs

    endpoint.tv - Windows Server AppFabric Local Security

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    In this episode, Michael McKeown describes the security model used in Windows Server AppFabric, which spans Windows Security Groups and SQL Server Database Roles.
  • Ron Jacobs

    New WCF Interop Dev Center on MSDN

    • 2 Comments
    From time to time people will come to me with an interop problem.  I have to say I’m the last guy on earth you should ask about interop problems.  After all – I don’t ever need to solve them because I use .NET everywhere. Fortunately there are...
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