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  • Blog Post: Advanced Workflow Service Talk (Demo 4 of 4)

    When we start doing this two way style of messaging, we now open up to start modeling some interesting business problems.  In the previous post, you'll note that I did not include the code, because I mentioned we needed to be more clever in scenarios where we listen in parallel.  First, a brief...
  • Blog Post: Advanced Workflow Services Talk (Demo 3 of 4)

    So, we've seen in part 1 how to manage context, we saw in part 2 how we can take that basic knowledge to do duplex messaging.  Once we start doing duplex work, there are some interesting patterns, and the first one is one that we like to call "long running work".  Why are we interested...
  • Blog Post: Q & A on Advanced Workflow Services talk

    Martin posted an interesting question here on my last post: <quote> The first thing that we need to do in order to enable this duplex messaging to occur is that the "client" workflow has to explicitly provide its context token to the service so that the service can address the appropriate...
  • Blog Post: Advanced Workflow Services Talk (Demo 2 of 4)

    A continuation of my series of demos from my advanced workflow services talk.  Here we focus on duplex message exchange patterns. Duplex messaging is something that we model at the application level (as opposed to the infrastructure level) because we want to model that message exchange at the level...
  • Blog Post: Advanced Workflow Services Talk (Demo 1 of 4)

    So, last week I wrapped up a conversation at TechReady, our internal conference, where I was talking about the integration between WF and WCF in .NET 3.5.  This talk was somewhat bittersweet, it's the last conference where I'm scheduled to talk about WF 3.0/3.5, I'll start talking about WF 4.0 at...
  • Blog Post: Workflows that don't start with a Receive

    A question recently came up on an internal list about how to start a workflow to do some work and then have it accept a message via a Receive activity.  This led to an interesting discussion that provides some insight into how the WorkflowServiceHost instantiates workflows in conjunction with the...
  • Blog Post: VS 2008 RTM's!

    As widely reported on blogs far and wide , Visual Studio 2008 has been released to manufacturing (or shipped, available, ready to get, etc).  MSDN subscribers can do their part to degrade the global bandwidth supply and get in the download queue via the subscription center, trial editions are available...
  • Blog Post: Regarding Re-use of Context-aware Proxies

    Yesterday, following my "What's the context for this conversation" presentation, I was approached with the following question: I am sharing a singleton client that I want to use to interact with multiple workflow instances, how do I change the context for each of them. Completely unbeknownst...
  • Blog Post: VS 2008 Beta 2 Shipped : 0 to Workflow Service in 60 seconds

    So, per Soma's blog , this great Channel9 video , and a bunch of other places, VS 2008 Beta 2 is available for download ( go here ). Others are covering their favorite feature in depth, I want to cover one of mine: the WCF test client, which I will show by way of creating a Workflow Service application...
  • Blog Post: Paste XML as Serializable Type

    Every now and then, there's a really cool feature that's buried somewhere that just hits you and makes you say "Wow, that's insanely helpful, why didn't somebody think of this sooner." I was playing around with the BizTalk Services SDK , specifically the different web programming bits and pieces and...
  • Blog Post: Orcas Beta 1 Samples (WF, WCF)

    Beta 1 samples have been posted. In this release there are separate installs for WF and WCF (and the workflow services are in the WCF one, go figure!) WCF (and WF Services) Samples WF Samples From Laurence's blog : This is the only version of the new samples that works at this time. The version that...
  • Blog Post: Dynamically Generating an Operation Contract in Orcas using WF

    This kicks off a set of posts where I'll be discussing some of the interesting features coming out in Orcas. I want to focus on this post on the Receive Activity, and a nice little feature in the designer that lets you create a contract on the fly, without having to drop into code and write a decorated...
  • Blog Post: WCF and WF in "Orcas"

    The wheels of evangelism never stop rolling. Just a few months ago I was blogging that .NET 3.0 was released. I've been busy since then, and now I can talk about some of that. Today, the March CTP of Visual Studio "Orcas" was released to the web. You can get your fresh hot bits here . Samples will be...
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