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Changing the Icon on a custom activity designer

Note: This blog post is written using the .NET framework 4.0 Beta 2 When I create custom activity designers the icon that appears is usually one of the first things I want to change. Doing so in WF4 isn’t hard once you know where to look but if you don’t can be a bit of a challenge. Suppose I have a...

Posted to The Problem Solver by Maurice on Mon, Jan 25 2010
Filed under: Filed under: .NET, Workflow, WPF, WF4, VS2010, Beta2
Workflow 4 and Visual Basic expressions Survey

The topic of Visual Basic expression in Windows Workflow Foundation 4 seems to be a bit of an item for some people as you can see in the comments to my blog posts about it here . Now personally I don’t think it is such a big deal as it only concerns the expressions entered in the workflow, the main project...

Posted to The Problem Solver by Maurice on Wed, Jan 13 2010
Filed under: Filed under: .NET, Workflow, VB, DevCenter, WF4, VS2010, Beta2
Rehosting the Workflow Designer in WF4

Note: This blog post is written using the .NET framework 4.0 Beta 2 With Windows Workflow Foundation 3 it was possible to rehost the workflow designer in your own application. But possible is about all there was to say about it as it was pretty hard to do anything beyond the basics. With Windows...

Posted to The Problem Solver by Maurice on Wed, Dec 23 2009
Filed under: Filed under: .NET, Workflow, WPF, WF4, VS2010, Beta2
Flowing transaction into a workflow using WF4

One of the things that wasn’t possible in Windows Workflow Foundation 3 was flowing transaction over a WCF service request into a workflow. We could have transactions on the client, we could have transactions on the server but they would not be able to cooperate. Fortunately that is one the problems...

Posted to The Problem Solver by Maurice on Mon, Dec 21 2009
Filed under: Filed under: .NET, Workflow, WCF, WF4, VS2010
Clarification about WCF RIA Services

A lot as been said about “.NET RIA Services” now called “WCF RIA Services”, and much more about this name change, since many people doesn’t look at RIA Services like a real WCF Services with all their power, but that isn’t quite true since WCF RIA Services use the same bases as WCF but just...

Posted to Nuno Filipe Godinho by NunoGodinho on Thu, Dec 10 2009
Filed under: Filed under: Microsoft, Architecture, VS2010, .NET 4.0, ADO.NET Data Services, RIA Services, WF4
Online WF4 presentation recordings

The recordings from my recent online Windows Workflow Foundation 4 presentation have been posted online. Get them while they are hot You can download the samples and PowerPoint from here . Streaming: http://developmentor.s3.amazonaws.com/webcasts/Meet-The-New-Workflow-WF4-Maurice-de-Beijer...

Posted to The Problem Solver by Maurice on Tue, Dec 8 2009
Filed under: Filed under: .NET, Workflow, webcast, WF4, VS2010
Activity correlation using a RequestReplyCorrelationInitializer

Note: This blog post is written using the .NET framework 4.0 Beta 2 In my previous post about Windows Workflow Foundation 4 I used the CorrelationScope activity to arrange for the activity correlation between a Send and the related ReceiveReply activities. That is quite easy to do and personally...

Posted to The Problem Solver by Maurice on Thu, Dec 3 2009
Filed under: Filed under: .NET, Workflow, WCF, WF4, VS2010
Activity correlation in Windows Workflow Foundation 4

Note: This blog post is written using the .NET framework 4.0 Beta 2 There are two types of correlation to think about in Windows Workflow Foundation: Message correlation Basically sending multiple requests to the same workflow. Activity correlation Making sure two activities work together. In this post...

Posted to The Problem Solver by Maurice on Wed, Dec 2 2009
Filed under: Filed under: .NET, Workflow, WCF, WF4, VS2010
Online Workflow 4 presentation

Attached are the PowerPoint sheets and samples from my online Window Workflow Foundation 4 presentation today. Let me know if you have any questions. WF4Demo.zip www.TheProblemSolver.nl Wiki.WindowsWorkflowFoundation.eu

Posted to The Problem Solver by Maurice on Tue, Dec 1 2009
Filed under: Filed under: .NET, Workflow, WCF, webcast, WF4, VS2010
Creating complex activities in the workflow designer

Note: This blog post is written using the .NET framework 4.0 Beta 2 In Windows Workflow Foundation 4 there are a number of “activities” in the designer that aren’t really activities but activity templates. The most obvious of there are the ReceiveAndSendReply and the SendAndReceiveReply in the...

Posted to The Problem Solver by Maurice on Mon, Nov 30 2009
Filed under: Filed under: .NET, Workflow, WCF, WF4, VS2010
Online presentation: Meet the New Workflow WF4

Tomorrow I will be doing an online presentation about Windows Workflow Foundation 4. The meeting lasts 1 hour and starts at 4PM European time, 3PM UTC or 7AM PST. The goal is to provide an overview of WF4 and how to get started with it in Visual Studio 2010. I will be doing the meeting using LiveMeeting...

Posted to The Problem Solver by Maurice on Mon, Nov 30 2009
Filed under: Filed under: .NET, Workflow, webcast, DevCenter, WF4, VS2010
TryCatch activity in WF4

Note: This blog post is written using the .NET framework 4.0 Beta 2 I can’t say I am a fan of the way the TryCatch activity is implemented in Windows Workflow Foundation 4. For starters there is a Finally block where you can add some activities you want to execute. Sounds nice and very much like the...

Posted to The Problem Solver by Maurice on Fri, Nov 27 2009
Filed under: Filed under: .NET, Workflow, WF4, VS2010
Windows Workflow Foundation 4 and persistence

Note: This blog post is written using the .NET framework 4.0 Beta 2 The whole persistence model has changed quite a but for WF4. The persistence class out of the box is called SqlWorkflowInstanceStore and as the name suggests it saves workflow data in either SQL Server 2005 or 2008. It is based...

Posted to The Problem Solver by Maurice on Thu, Nov 19 2009
Filed under: Filed under: .NET, Workflow, WF4, VS2010
PDC09 – Day Two – Windows Workflow Foundation 4.0 from the Inside out

Bob Schmidt – Program Manager For WF4: Programs are data Scheduler-based program execution stackless & serializable Runtime-mediated code rendezvous Natural Control flow run it the way you think of it Authoring WF is an activity Can author programmatically or using XAML Can contain other activities...

Posted to Nuno Filipe Godinho by NunoGodinho on Wed, Nov 18 2009
Filed under: Filed under: Microsoft, VS2010, Visual Studio 2010, WF4, AppFabric
Entity Framework 4.0 News

In the last few days I’ve been seeing several element of the Entity Framework 4.0 that come with the .NET 4.0 and I there are several interesting news that I thought I could wrap up a little bit in this post, and so lets start with the news. Providers made for version 3.5 will work unmodified...

Posted to Nuno Filipe Godinho by NunoGodinho on Mon, Nov 16 2009
Filed under: Filed under: Microsoft, VS2010, Visual Studio 2010, .NET 4.0, Entity Framework, WF4
TechEd EMEA 2009 – Session “Deep Dive in Windows Workflow Foundation 4.0” – Part 2/4

After the part 1 in which we talked about the Changes from WF 4.0 Beta 1 to Beta 2, in this part 2 we will talk about the new Flowchart Workflow. And so first of all let’s start by identifying the challenges that we currently have when using Workflow development, and they are...

Posted to Nuno Filipe Godinho by NunoGodinho on Sun, Nov 15 2009
Filed under: Filed under: Microsoft, VS2010, Visual Studio 2010, .NET 4.0, WF4
TechEd EMEA 2009 – Session “Deep Dive in Windows Workflow Foundation 4.0” – Part 1/4

Just last week was in Berlin, Germany the TechEd EMEA 2009 event and in that event had a session called “Deep Dive in Windows Workflow Foundation 4.0”. This was a level 300 session and not 400 as the name could make you think, but this way we could achieve more people in terms of breadth...

Posted to Nuno Filipe Godinho by NunoGodinho on Sun, Nov 15 2009
Filed under: Filed under: Microsoft, Architecture, Visual Studio 2010, .NET 4.0, WF4
Flowcharts in Workflow 4 and the Switch activity

Note: This blog post is written using the .NET framework 4.0 Beta 2 Flowcharts are a nice addition to Windows Workflow Foundation 4. They allow for a lot of pretty complex behavior that is hard to do in a sequential workflow. In WF 3 we used to model these complex behaviors as state machine workflows...

Posted to The Problem Solver by Maurice on Tue, Oct 27 2009
Filed under: Filed under: .NET, Workflow, WF4, VS2010
Workflow 4 and Visual Basic expressions

Note: This blog post is written using the .NET framework 4.0 Beta 2 When using Windows Workflow Foundation 4 you often need to enter expression in some activity property. The new thing is these expressions are all in the Visual Basic dialect regardless of what language you project is in. So when developing...

Posted to The Problem Solver by Maurice on Mon, Oct 26 2009
Filed under: Filed under: .NET, NetFx3, Workflow, VB, WF4, VS2010
Workflow parameters in Window Workflow Foundation 4

Note: This blog post is written using the .NET framework 4.0 Beta 2 Creating parameters for a workflow is quite easy to do in WF 4. Just open the arguments tab in the workflow and add each input or output parameter you need and the required type. Now in WF 3 passing data to a workflow was done...

Posted to The Problem Solver by Maurice on Fri, Oct 23 2009
Filed under: Filed under: Workflow, WF4, VS2010

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