Ron Jacobs
Windows Workflow Foundation
Status Update
Thanks to the many supporters and friends who contributed to my first round of fundraising I have...
Date: 09/11/2013
I will return...
Thank you to the many friends who have helped to pay for my experimental treatment with the CVAC...
Date: 08/22/2013
Another Post...
I know I said that my previous post was my last post. Today I checked my Microsoft email for the...
Date: 07/05/2013
My Last Post
A few months ago I wrote this post about my diagnosis with Adiposis Dolorosa (Dercum's Disease)....
Date: 01/10/2013
Less is More
I am a musician. Over the years I have played keyboards in many bands, traveling and performing...
Date: 08/22/2012
How to use LINQ in a Workflow
Question Can I use a LINQ Query such as the following in a Workflow? private static void...
Date: 07/27/2012
What’s Up With Ron
Nearly every day I get email from someone asking for help. I wish I had time to answer every...
Date: 07/09/2012
What State is my StateMachine in?
Recently saw this question in the MSDN Workflow Forum Is there a (SetState) in the new StateMachine...
Date: 06/18/2012
Extending ASP.NET MVC Account Registration with Workflow (WF4)
One thing that many web sites do is to verify email addresses by sending you an email to complete...
Date: 05/06/2012
Troubleshooting Workflow Services with diagnostic logging
Sometimes you have a workflow service that is misbehaving in a production environment. How do...
Date: 12/16/2011
How To Enable Service Metadata for Workflow Services
Try this… Create a new ASP.NET Web Application (MVC or Web Forms). Then add a new a WCF...
Date: 12/16/2011
Troubleshooting Silverlight, WorkflowServices, WCF and Behavior Extensions
In my previous posts I’ve written about my experiences with WorkflowServices and Silverlight....
Date: 12/14/2011
WF4 WorkflowServices Troubleshooting Tip: Browse the XAMLX
I was doing some work on my Contoso HR Workflow Services sample application today when for some...
Date: 10/19/2011
Visual Studio 11 Preview and .NET 4 Platform Update 1 Side by Side Bug
If you install the Visual Studio 11 Preview release on a machine that has .NET 4 Platform Update 1...
Date: 09/30/2011
Using the WCF Test Client to Test Your Workflow Service
If you need a quick and simple way to manually test your WorkflowService the WCF Test Client makes...
Date: 09/23/2011
Troubleshooting Workflow Services / Silverlight
From time to time I’ll hear from somebody who is trying to use a WCF Workflow Service with...
Date: 08/26/2011
XamlInjector–Cannot create unknown type errors
If you are using Microsoft.Activities.UnitTesting.XamlInjector to mock activities you may run into...
Date: 08/25/2011
How to create a Custom Activity Designer with Windows Workflow Foundation (WF4)
The Windows Workflow Foundation (WF4) - Custom Activity Designer sample demonstrates how you can...
Date: 08/14/2011
MSTest [DeploymentItem] and Environment Variables
Today I’ve been fixing up the build system for Microsoft.Activities and...
Date: 07/28/2011
CleanProject - Cleans Visual Studio Solutions For Uploading or Email
You know those little tools you build to help in your development? The ones that you slapped...
Date: 07/24/2011
Nuget Package Images
The NuGet team has recently added the ability to store the package icon URL in the nuspec...
Date: 07/11/2011
How to: Implement a WCF Asynchronous Service Operation with Task
I love Task<T>. It has to be one of the finest innovations in the framework in the past...
Date: 06/30/2011
Windows Workflow Foundation (WF4) ParallelFor Activity
In my previous posts I’ve been arguing that you can implement Task Parallelism with Windows Workflow...
Date: 06/28/2011
Windows Workflow (WF4) Task Parallelism with Sequences
In my last post The Workflow Parallel Activity and Task Parallelism I said that you can implement...
Date: 06/28/2011
The Workflow Parallel Activity and Task Parallelism
“Task parallelism (also known as function parallelism and control parallelism) is a form of...
Date: 06/28/2011
Windows Workflow Foundation (WF4) Activities and Threads
Most of the time in software when we say “Parallel” we mean that multiple threads are being used to...
Date: 06/23/2011
Authoring Activities in Code or XAML
With Windows Workflow Foundation (WF4) you can author activities in Code or XAML. Each has...
Date: 06/22/2011
XAML and Activity Assembly Spoofing
Recently I was contacted by a customer who had read my posts on Versioning and was investigating...
Date: 06/21/2011
How To Load WF4 Workflow Services from a Database with IIS/AppFabric
This morning I saw a message post on the .NET 4 Windows Workflow Foundation Forum titled Load XAMLX...
Date: 06/15/2011
Creating a State Machine in Code
Lots of people create state machines. There are many examples on the web of people who are...
Date: 06/08/2011
Passing arguments to Workflow Activities (again)
Way back in September 2009 I wrote WF4: Passing Arguments to Activities. In the years since...
Date: 05/26/2011
Tracking Child Workflow with InvokeWorkflow
For background on this issue see WF4 How To Invoke a Child Workflow as XAML. Thanks to...
Date: 05/26/2011
Passing Values between Workflow Activities
It’s been a long while but in the old WF 3.5 days as I recall there was this funky binding thing...
Date: 05/25/2011
Performance Review Time
Well it’s that time of year again. Time to write the performance review. While working...
Date: 05/24/2011
How to handle the trailing slash in a WCF HTTP Service
The other day I got this tweet from Adam @ronljacobs anyway to do something like:...
Date: 05/23/2011
Using Workflow Services and Silverlight Together
In my previous post on WorkflowServices, CanCreateInstance and Silverlight I shared with you some of...
Date: 05/18/2011
.NET Framework Platform Update 1–Supported Runtime Config
Update 6/21 - there is a fix for this known issue see KB2468871 look for issue #9 I have found that...
Date: 05/18/2011
Delay signing Visual Studio and XamlBuildTask
While working on signing assemblies you may run into a problem I encountered this morning so here...
Date: 05/18/2011
Retargeting Visual Studio Test Projects for .NET 4 Platform Update 1.
If you are using .NET 4 Platform Update 1 to do unit testing you may encounter this dialog box when...
Date: 05/17/2011
How to eliminate tempuri.org from your service WSDL
tempuri.org is the default namespace applied to WCF Services and Workflow Services. You can...
Date: 05/12/2011
Microsoft.Activities and Microsoft.Activities.UnitTesting now available via NuGet
Update 12/3/2011: Microsoft.Activities is now Microsoft.Activities.Extensions When I first saw NuGet...
Date: 05/09/2011
How to troubleshoot Windows Server AppFabric and Workflows
If you are having trouble with a Workflow deployed in IIS with Windows Server AppFabric, the event...
Date: 05/04/2011
WF4 Advanced State Machine Stuff
So you want to know how the state machine really works? Take a look at the WF4 State Machine...
Date: 05/04/2011
How to detect if the .NET Framework Platform Update 1 is installed
Humans Go to Control Panel / Programs / Programs and Features / View Installed Updates Use the...
Date: 04/29/2011
How to create a WF4 WorkflowServiceHostFactory for AppFabric Auto-Start
Sometimes when using Windows Workflow Foundation (WF4) you need to create a custom...
Date: 04/27/2011