The Activity Designer

Not actually a WF 4.0 blog any more :)

VS, DTE, COM, and COMException (:-P)

Recently, for testing, I wanted to manipulate Visual Studio using DTE. DTE is Visual Studio’s...

Author: tilovell09 Date: 09/22/2010

When is == not Equals()?

(non-WF post) I had a debugging experience which was mildly shocking today. Here is some Assert-like...

Author: tilovell09 Date: 08/04/2010

First, the 'Best Practices for creating Custom Activities' endpoint.tv piece (Part1, Part2). Second,...

Author: tilovell09 Date: 07/02/2010

InstallShield in the wrong language

(An off-topic post) I've been putting up with various programs installing themselves in Japanese,...

Author: tilovell09 Date: 06/12/2010

(WF4) Workflow 4.0 Hosting Extensions

[Update:Dear Readers,To those of you who found this post interesting, but still a little too vague...

Author: tilovell09 Date: 06/07/2010

Literal and Reference Types

[Edit – I had to cut the pictures, they got broken by software update issues.] With two forum posts...

Author: tilovell09 Date: 06/01/2010

Fixing: An Activity Designer for InvokeAction

Something that I had as a blog post was almost useful to someone. Almost, except for all the rough...

Author: tilovell09 Date: 05/12/2010

Code-Beside Files for WF Activity Xaml

Today I’m cheaply recycling yet another perennial forum and mailing list question into a lightweight...

Author: tilovell09 Date: 05/11/2010

Extending Unit Tests in Visual Studio

It’s funny how you walk around with a question on your mind for a couple weeks and then one day it...

Author: tilovell09 Date: 04/28/2010

In which I learn that MEF Composes Parts, not ExportDefinitions

[Rewrite - 06/04/10] Here’s a little MEF sample (minus definition of TestMetadataFilteringCatalog)...

Author: tilovell09 Date: 04/27/2010

Trials of Working on the WF Designer Test Team

In a different vein from my usual posts, I’m going to talk about regular work – testing. For the...

Author: tilovell09 Date: 04/26/2010

WF4 now has State Machine – let’s play!

Just after the .net 4.0 framework and VS10 were famously released without state machine, the...

Author: tilovell09 Date: 04/21/2010

I may need to update some earlier blog posts, but in the meantime you can find the latest WF4 and...

Author: tilovell09 Date: 04/14/2010

April 12th - the big day has arrived!

Yes, we’re finally shipping Visual Studio 10! Listening to the launch live.

Author: tilovell09 Date: 04/12/2010

Working with Commands in a Workflow Designer Rehost Application

Issuing, Handling, and Intercepting Commands in a WF4 Rehosted Designer application. Background on...

Author: tilovell09 Date: 03/19/2010

Custom Flowchart Runtime Thoughts (for ICompositeView)

Disclaimer: no WF 4.0 runtime experts were consulted for advice in the thinking of this. YMMV....

Author: tilovell09 Date: 03/11/2010

The Workflow 4.0 Custom Activity Icon (and Toolbox Icon) FAQ

[Update: This FAQ is outdated and has be rewritten and reposted here:...

Author: tilovell09 Date: 03/08/2010

Getting Your Workflow Instance

There are a few things I feel like I should be able to do inside of a NativeActivity, but can’t -...

Author: tilovell09 Date: 02/26/2010

An Activity Designer for InvokeAction

[Update! There are some bugs with the attached code, see the sequel post for discussion of bug...

Author: tilovell09 Date: 02/25/2010

Misadventures in CacheMetadata – wrapping an inner activity, in code

Let’s dig deeper into CacheMetadata (intro post). We’ll do it with a toy problem – I want to wrap...

Author: tilovell09 Date: 02/25/2010

People who who start interesting things in rehosted designer applications or just VS, will often...

Author: tilovell09 Date: 02/22/2010

Little Mysteries of the Day

Here's a few random musings from a day of testing a few months ago. I was trying to test some...

Author: tilovell09 Date: 02/16/2010

NativeActivity - CacheMetadata for Fun and Profit

[Cache. Profit. I guess I’m going on 50.] After reading Basic Activity Scheduling and starting to...

Author: tilovell09 Date: 02/06/2010

Basic Activity Scheduling in Workflow 4.0

…NativeActivity. Provides all of the features of CodeActivity, plus aborting activity execution,...

Author: tilovell09 Date: 01/26/2010

Reacting to ViewState Changes … and finally using AttachedPropertiesService

(The series: This makes Part 7 of a series of posts on flowchart-like freeform layout activity...

Author: tilovell09 Date: 01/25/2010

Updated: Drag+Drop support in WorkflowDesigner custom activity designers

I’ve updated one of my earlier posts Freeform Custom Activity Designers using ICompositeView (Part...

Author: tilovell09 Date: 01/20/2010

Some Gory Details of WorkflowDesigner Undo Redo

(I've pulled this out from where it was embedded in one of my posts about implementing...

Author: tilovell09 Date: 01/12/2010

Freeform Custom Activity Designers using ICompositeView (Part 5)

This is Part 5 of a series of posts, [Part 1 – Part 2 - Part 3 - Part 4 – Part 5 – Part 6]....

Author: tilovell09 Date: 01/07/2010

Freeform Custom Activity Designers using ICompositeView (Part 4)

This post is Part 4 of a series on writing custom activity designers. [Part 1 - Part 2 - Part 3 -...

Author: tilovell09 Date: 01/06/2010

Freeform Custom Activity Designers using ICompositeView (Part 3)

[This post is Part 3 of a series on writing custom activity designers. Part 1 – Part 2 - Part 3 -...

Author: tilovell09 Date: 01/06/2010

Best XAML guide ever?

I just wanted to interrupt the normal flow of posts with a link to a old but wonderful post from...

Author: tilovell09 Date: 01/04/2010

Freeform Custom Activity Designers using ICompositeView (Part 2)

This post is Part 2 of a series on writing custom activity designers. [Part 1 - Part 2 - Part 3 -...

Author: tilovell09 Date: 01/03/2010

Freeform Custom Activity Designers using ICompositeView

[This post is Part 1 of a series on writing custom activity designers. Part 2 - Part 3 - Part 4 –...

Author: tilovell09 Date: 12/31/2009

Workflow Scopes and Execution Properties

or, Workflow Execution Properties for custom data passing. I wrote this after seeing a few forum...

Author: tilovell09 Date: 12/20/2009

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