Ron Jacobs

Windows Workflow Foundation

My New Role

Well after nearly 14 years, 20 countries, dozens of Tech-Ed's, PDC's, and numerous other events my...

Author: Ron Jacobs Date: 09/22/2013

Status Update

Thanks to the many supporters and friends who contributed to my first round of fundraising I have...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 07/05/2013

My Last Post

A few months ago I wrote this post about my diagnosis with Adiposis Dolorosa (Dercum's Disease)....

Author: Ron Jacobs Date: 01/10/2013

The Amazing Race

I’ll never forget the first time I heard someone mention a “Race Condition”.  In my younger...

Author: Ron Jacobs Date: 09/05/2012

Less is More

I am a musician. Over the years I have played keyboards in many bands, traveling and performing...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 07/27/2012

How to make a library portable and data binding friendly at the same time?

Here is the challenge.  Create a portable library that could be used by almost anything...

Author: Ron Jacobs Date: 07/22/2012

My Essential Development Tools

There are a few development tools that I just can’t live without. ReSharper A few years ago I was...

Author: Ron Jacobs Date: 07/10/2012

What’s Up With Ron

Nearly every day I get email from someone asking for help.  I wish I had time to answer every...

Author: Ron Jacobs Date: 07/09/2012

Three Simple Rules for Better Debugging with WorkflowApplication

Developers often say that there is a steep learning curve with Windows Workflow Foundation...

Author: Ron Jacobs Date: 07/05/2012

What State is my StateMachine in?

Recently saw this question in the MSDN Workflow Forum Is there a (SetState) in the new StateMachine...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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....

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 08/14/2011

MSTest [DeploymentItem] and Environment Variables

Today I’ve been fixing up the build system for Microsoft.Activities and...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 07/24/2011

Nuget Package Images

  The NuGet team has recently added the ability to store the package icon URL in the nuspec...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 05/25/2011

Performance Review Time

Well it’s that time of year again.  Time to write the performance review.  While working...

Author: Ron Jacobs 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:...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs 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...

Author: Ron Jacobs Date: 04/27/2011

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