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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 a project in...
Op 21 november 2009 organiseren de SDN , Stichting dotNed en VBcentral samen het derde Nederlandse Code Camp . Dit is een dag lang met code, code sharing, freaking en gezellig samenzijn. Een evenement door ontwikkelaars, voor ontwikkelaars. De regie ligt...
Filed under: .NET, Visual FoxPro, LINQ, NetFx3, Workflow, VSTO, WCF, VB, webcast, ClickOnce, WPF, Silverlight, SDN, Data Access, ASP.NET
In the previous two blog posts ( here and here ) I showed how to create and expose a Windows Workflow Foundation 4 workflow via WCF and have both a workflow and a regular C# client work with it. But the parameter and return value where real simple with...
In a previous blog post I described how to use the WorkflowServiceHost and host a workflow with a Receive activity that waits for WCF messages. I also added a WF4 client that called the service and received a response. However a lot of clients out there...
The question of what Windows Workflow Foundation version 4 means for developers currently developing using WF recently came up. As I mentioned before WF 4 is a complete rewrite and doesn’t use any of the existing WF 3 classes. The design of WF...
Then you should check Mike Swanson’s blog post here . He has two batch files, the first downloads all MIX session recordings with in the format you like, the second renames them so it is easier to make sense of all the media file names. If you just want...
Filed under: .NET, LINQ, NetFx3, WCF, VB, webcast, DevCenter, WPF, IronPython, Silverlight, ASP.NET
Just one week to go to the next Software Development Event. The schedule with all the sessions is looking good. But this time there is even more! We will have a Microsoft Surface machine somewhere in the common area for people to try our. And if you have...
Attached are the PowerPoint presentation and samples from my WF with WCF presentation in Timisoara, Romania. Thanks to Ineta for providing the funding for this. Download the PowerPoint and samples
Attached are the PowerPoint presentation and samples from my state machine workflow presentation in Timisoara, Romania. Thanks to Ineta for providing the funding for this. Download the PowerPoint and samples
Attached is are the samples and slides I used for my intro into WCF talk yesterday at the VB Central meeting in the Netherlands. Download samples Enjoy! www.TheProblemSolver.nl Wiki.WindowsWorkflowFoundation.eu Now also on twitter at http://twitter.com...
Last year Marcel and I worked on a problem using a TransactionScopeActivity inside a WCF ReceiveActivity. I blogged a number of time about our finding, for example here . Last week I heard from Marcel that a hotfix was finally available that solves this...
Last week lots of MVP, myself included, where in Redmond visiting Microsoft on our yearly MVP pilgrimage. The MVP Summit is always a great event. Not only do we get to talk to the MS team members who actually design and build all the software we love...
Next week, on march 10th, I will be doing a presentation on getting started with WCF at the VB Central user group in the Netherlands. Its a free event so if you are in the neighborhood feel free to drop by. They do ask you register beforehand. Besides...
When using self created SSL certificates with HTTPS WCF endpoints you might run into certificate validation errors. The best solution of to make sure all your certificates are fully trusted but sometimes that might not be an easy thing. The next best...
The Patterns & Practices group at Microsoft have just released Prism version 2. I am pretty exited about this because Prism version 2 supports both WPF and Silverlight. And as it makes extensive use of the Model - View - ViewModel amongst other design...
In my previous blog post I demonstrated how you can use Ninject in your Silverlight application to automatically inject dependencies and make live easier. In the sample I injected the dependency, the PingService, inside my PageModel constructor. That...
One useful feature when developing more complex code is using an inversion of control (IOC) container to do dependency injection. The basic principal of inversion of control, or dependency injection, is to pass in any dependencies when an object is created...
When developing WCF service the System.Web.Hosting.HostingEnvironment class is kind of useful as it will give you all sorts of information about the runtime environment of where you app is hosted. string path = HostingEnvironment.MapPath( @"\MyFile...
Error handling code can be a drag but the simple fact is that everyone needs to write it because runtime errors can and do occur. Developing a Silverlight app is no different here, exceptions will occur and you as a developer will need to deal with them...
When developing Silverlight line of business (LOB) applications we often need to get at some data from a database. There are various ways to do so. One option that is easy to get started with with is creating an ADO.NET Entity Data Model (EDM) and exposing...
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