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  • Blog Post: WF4, WCF and AppFabric Sessions @ PDC09

    I’m taking this week off to catch up on everything I haven’t done the last two months and to celebrate the Thanksgiving holiday here in the US. PDC was a blast!  It was incredibly awesome to meet so many folks interested in WF and talking with others about how they are using (or plan to use) WF4...
  • Blog Post: Which WF/WCF Talks Should You Attend at PDC?

    Just got the email the other day that PDC is less than 4 weeks away, and it got me thinking a bit about how I would think about these sessions as an attendee.  Searching on the PDC site will yield 8 talks tagged with WF.   Here's how I break some of these these down, the first few are...
  • Blog Post: WCF Perf Talk @ PDC (or, the Doctor Teaches Fishing)

    I'm probably not going to have too much time to attend talks at PDC, but one talk that would be high on my list is the one that Dr. Allen blogs about here , where he talks about the Zen of WCF Performance and Scale.  I like "Zen" style talks, especially for topics like performance and...
  • Blog Post: More Details On WF/WCF in .NET 4.0

    Steve Martin , a director of product management for CSD, has a blog post containing more information on the work that we are doing for the next versions of WF and WCF that we will release as a CTP at PDC.  He also introduces "Dublin," the name for our efforts around creating a manageable...
  • 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: 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: Recent WF Content Summary

    I've been having some fun playing around with Visual Studio 2008 and the .NET Framework 3.5, and wanted to summarize some of the content I've put up on channel9 and other places. Samples The Conversation Sample remixed -- if there is one sample in the SDK to help you understand what is going on with...
  • Blog Post: Picture Services

    As Justin announces here , my team recently released the picture services sample. This is a cool way to expose the pictures on a machine that are found via Windows Desktop Search out in a simple, easy to consume REST endpoint. There are a few things here that I think are pretty cool Pretty easily return...
  • 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: 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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