DotNed podcast: Freena Eijffinger over Autisme en de Surface

In deze podcast spreekt Maurice de Beijer met Freena Eijffinger over autisme en hoe Freena de Microsoft Surface tafel gebruikt om autisme te diagnotiseren bij kinderen. Met dank aan onze sponsor: Red-Gate, ingeniously simple tools Links: Autitouch: Freena: Hart van Nederland: BizSpark:   Enjoy!   [f1] [f2]

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 simple write line activity like this: [Designer(typeof(MyWriteLineDesigner))] public sealed class MyWriteLine : CodeActivity { // Define an activity input argument of type string public InArgument<string> Text { get; set; }   // If your activity returns a value, derive … Continue reading Changing the Icon on a custom activity designer

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 Workflow Foundation 4 live has become much better on the rehosting front [:)] In fact it is possible to create the fully functional and useful workflow editor below in about 200 lines of code. Now that is more like it!   The WorkflowDesigner The WorkflowDesigner … Continue reading Rehosting the Workflow Designer in WF4

Nederlandse CodeCamp 2009

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 voor een belangrijk deel bij de deelnemers! Het aantal plaatsen voor deelnemers is wel beperkt tot maximaal 150. Wacht dus niet te lang met beslissen want voor je het weet is er geen plaats meer. Vergeet bij je aanmelding niet op te geven welke onderwerpen je interesse hebben. Bovendien nodigen we iedereen graag uit om zelf een sessie in te vullen. … Continue reading Nederlandse CodeCamp 2009

Using Model – View – ViewModel with Silverlight

The View – Model – ViewModel design pattern, also known as MVVM, is getting more popular these days. I have found it extremely easy to use when developing very different applications and have used the design pattern recently in both ASP.NET, WPF and Silverlight applications. However easy as it might be is seems to confuse people as I have seen some terrible examples where people make a complete mess of things. Josh Smith did an excellent screen cast for Pixel8 on using MVVM with WPF, you can find it here.   Even thought the UI technology used doesn’t change the … Continue reading Using Model – View – ViewModel with Silverlight

Surface at the last Software Developer Event

As was to be expected the Surface machine at the last SDE was a big success and with lots of people wanting to have a go at it. Nice to see the interest. And I am grateful Martin Tirion from the Dutch Microsoft office let us borrow the machine for a day. At the end of June we will have the next big event [:)] Cu there.   BTW you can find more pictures from the event here.   [f1] [f2] And now on Twitter at

Want to download all MIX sessions?

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 a list of all sessions with download links this page might be the thing for you. So much better than downloading them by hand. Not as good as going to the MIX itself but if you, like me, couldn’t go it is still a nice way to see all the content. Enjoy!

Software Development Event march 30th

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 never played, oops tested, with a Surface machine before this is a truly exiting machine! Just goes to show, the SDN will go to extraordinary efforts to please all attendees [:)] You can see the full schedule here. And don’t forget, we are not in Ede this time but in a great … Continue reading Software Development Event march 30th

Looking back at the MVP Summit

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 and use but we also get to meet each other. And with MVP’s being located around the world that is kind of rare as well. Despite this being a great event I still have very mixed feelings about this last MVP summit. The problem isn’t the events itself or the people I met, … Continue reading Looking back at the MVP Summit