Ron Jacobs

Windows Workflow Foundation

Posts
  • Ron Jacobs

    Why Does my DelayActivity's InitializeTimeoutDuration not work?

    • 3 Comments
    The other day I was writing some unit tests for a StateMachine workflow.  My StateMachine had a state where it uses a ReceiveActivity to receive a web service message.  In the same state it has an event that uses a DelayActiviity to handle a...
  • Ron Jacobs

    endpoint.tv - Getting Control of the URI with RESTful WCF Services

    • 1 Comments
    RESTFul people want to control the URI of their services.  They focus on building a good information architecture that describes the resources their site provides.  Historically most web sites described resources in terms of files and paths...
  • Ron Jacobs

    Setting up Workflow Databases for Persistence and Tracking

    • 2 Comments
    Let's just say that I'm not a SQL wiz.  I like to use SQL Server Management Studio express when dealing with databases.  Unfortunately today I was trying to setup the Workflow databases on a machine where I had not installed SQL Management Studio...
  • Ron Jacobs

    uR 5UcH 4 n00B

    • 4 Comments
    I love playing computer games (probably a little too much).  Of course when you first get started you are the guy who gets killed all the time because you don't know what you are supposed to do or where the secret stash is.  After a while of...
  • Ron Jacobs

    Locking in SqlWorkflowPersistenceService

    • 1 Comments
    In my previous post I was thinking about persisted workflows in a server farm and thinking about how optimistic and pessimistic locking affects the operation of workflows in a server farm. I said that the default behavior of the SqlWorkflowPersistenceService...
  • Ron Jacobs

    Putting the "You" in Usability

    • 1 Comments
    Have you ever used a product and found it difficult at first?  Or maybe I should say, when have you not found this to be true?  Some things are just easy to pick up and use.  In fact, the best products don't even require much documentation...
  • Ron Jacobs

    Using Windows Workflow with WCF on a Load Balanced Server Farm

    • 5 Comments
    This morning I was in an interesting email thread with some of my Microsoft colleagues about the use of Windows Workflow Foundation (WF) on a load balanced server farm.  The question that started the whole thing was that a customer had asked their...
  • Ron Jacobs

    Help - My Head Is Exploding

    • 4 Comments
    At Tech-Ed this year I felt a new vibe from the people I talked to.  This feeling has been there before but this year it was even more pronounced.  It was the feeling that your brain just couldn't take any more.  In the past we used to...
  • Ron Jacobs

    Modeling Change

    • 1 Comments
    If you have heard anything about "Oslo" (the codename for the future application platform) you have probably heard that Oslo is about 2 things, models and services.  Today I met with a group of smart guys here in Sydney where we had a chat...
  • Ron Jacobs

    Behavior Change and State

    • 2 Comments
    Last post I was thinking about change and how one plans for change in the life of an application.  I became particularly interested in this after hearing from customers about the pain of versioning and how little we help them with this in the platform...
  • Ron Jacobs

    Living through "The Change"

    • 4 Comments
    Funny how it happens, but things change don't they?  Our applications, as perfect as they are when brand new, grow and change over time and like teenagers, sometimes these changes are quite painful. Over the past few weeks we have been speaking to...
  • Ron Jacobs

    AdventureWorks REST API Version 4 updated for Architect Connections Orlando

    • 1 Comments
    I've added support for conditional get in client side code with WCF (this is the only working sample of this you will find anywhere).  I also fixed the code to invalidate the server cache when the collection of customers is modified in some way....
  • Ron Jacobs

    Death at the hands of the Demo gods or PowerPoint glitch? You decide....

    • 3 Comments
    At Tech-Ed Israel I tried a technique I got from Juval Lowy with PowerPoint for the first time.  What Juval does is he clicks on an icon of Visual Studio to start it with the correct solution already loaded.  After sitting through his class...
  • Ron Jacobs

    My first WCF REST Talk at Tech-Ed Israel

    • 2 Comments
    How did it go?  Well... my demos tanked a couple of times...  I had to reboot the machine.  The A/V guys kept wanting me to change resolution on the screen because it was fuzzy.  The screen was small for the room so it was hard to...
  • Ron Jacobs

    My RESTful Client / Service Sample

    • 3 Comments
    I worked right up to the wire here at Tech-Ed Israel.  I have to speak in just 2 hours so I'm calling it done for now.  This sample code demonstrates a RESTful Service API over the AdventureWorks database.  The code is not something you...
  • Ron Jacobs

    Building and Managing the Magic of Software - My talk in Athens with Bill Gates

    • 0 Comments
    Often people ask me "Have you ever met Bill Gates?"  Well, the answer is no, I have not met him.  But recently I was in Athens where I gave a keynote speech at an event there where Bill Gates was the other speaker.  If you have...
  • Ron Jacobs

    AdventureWorks Security and webHttp endpoint behavior

    • 1 Comments
    Yes... these are the two devils that kept getting in my way today.  I'm going to tell you exactly what I found out about these two things since my fruitless web searches got me nowhere but some poor soul who follows me one day may find this blog...
  • Ron Jacobs

    Why the wait?

    • 3 Comments
    I wasn't planning on writing a blog post now but... since Windows Explorer has given me a moment I decided to take this time to ask the question "Why?" I've just uploaded a couple of files to a SharePoint site and I thought that I ought to organize...
  • Ron Jacobs

    WCF Deployment Challenge - Phase II deploy to IIS on local machine

    • 2 Comments
    I'm once again comparing the ASMX experience to the WCF experience.  In this phase I'm simply going to deploy the Hello World type service to IIS on the local machine and compare the two.  I'm using IIS 7 on Windows Vista SP1 for my test environment...
  • Ron Jacobs

    WCF Deployment Challenge

    • 8 Comments
    Join me as once again I tackle the learning curve of WCF with a deployment challenge.  Today - WCF vs. ASMX deployment. Note: As the new WCF evangelist I have to say that WCF is clearly the future of web services.  In fact, the WCF team owns...
  • Ron Jacobs

    What I've learned so far about REST with Yahoo Services

    • 3 Comments
    Well - I finally finished my Yahoo Services sample .  After I poked around on their site a bit more I found their search SDK .  I have to say I think mine is better of course :-).  I didn't put the Asynchronous Programming Model in the...
  • Ron Jacobs

    Implementing the Asynchronous Programming Model

    • 3 Comments
    After the fun I had yesterday building my Yahoo Services Search Proxy (see my previous post ) today I decided to see if I could extend my proxy to support the Asynchronous Programming Model. And what is more, I wanted to use the TDD process to do it. ...
  • Ron Jacobs

    Confessions of a RESTful newbie

    • 3 Comments
    Over the years various people have asked me what I thought about REST as a style for implementing services.  For most of that time I felt that it was something that I didn't need to know or care about.  However... those days have now come to...
  • Ron Jacobs

    Using the Windows Workflow SynchronizationScopeActivity with the ParallelActivity

    • 0 Comments
    I my previous post on the ParallelActivity I mentioned that the execution of activities contained in the child SequenceActivity(s) is not what you might expect.  The workflow engine switches among the threads which could lead to undesired results...
  • Ron Jacobs

    Meet The Parallel Activity

    • 2 Comments
    I've been learning a lot about Windows Workflow lately and the main way which I learn is by writing code.  So I've written a sample today that deals with the ParallelActivity and is largely based on the much simpler version from chapter 11 Kenn Scribner...
Page 10 of 14 (330 items) «89101112»