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how to work with animations in Silverlight in the mvvm pattern

One of the things I found a bit more challenging than it should have been is working with animations in Silverlight. Often people will resort to code behind and triggering animations from code. However, I don’t really like that approach, because animations Read More...
Posted Monday, October 12, 2009 8:35 PM by erwinvandervalk | 0 Comments

Announcing the guide for claims based identity and access control

Today, we’ve put the first beta drop of the book ‘Guide for Claims based identity and access control’ online. You can find the beta of the guide at Codeplex . Over the next couple of weeks, we’ll keep placing new releases online, so keep looking. So what Read More...
Posted Friday, October 02, 2009 11:37 PM by erwinvandervalk | 0 Comments

how to build an outlook style application – part 1

[Update] This is part 1 of this post. Read the second post here. At the end of building prism V2, we have played around with different application styles to see how easy it is to consume our own libraries. In this blog post, I’m going to describe my attempt Read More...
Posted Friday, September 18, 2009 6:41 PM by erwinvandervalk | 1 Comments

how to apply a viewmodel to new windows

A colleague asked me a question today. How do you apply the Model View ViewModel pattern to new Windows and Popups. To illustrate that, i wrote a small sample app, which I wanted to share with you. This post is part of a series: <Back to intro> Read More...
Posted Friday, September 18, 2009 7:51 PM by erwinvandervalk | 0 Comments

writing applications that target both wpf and silverlight with a single codebase

A while back, I wrote an MSDN article on writing multi-targeted programs with Prism. http://msdn.microsoft.com/en-us/magazine/ee321573.aspx   Hope you like it! Read More...
Posted Thursday, September 03, 2009 9:09 PM by erwinvandervalk | 0 Comments

how do i adapt a simple vs complex model

When I started with separated presentation patterns, I always thought that to create a single screen, I ALWAYS had to create a view to display the data, a presenter/controller/viewmodel class to hold the logic and a model class to hold the data. Later, Read More...
Posted Monday, August 31, 2009 7:02 PM by erwinvandervalk | 0 Comments

Implementing the Model View ViewModel pattern

In this third part of my series of blog posts on the ViewModel pattern, I’m going to demonstrate how to implement a simple example of the ViewModel pattern. Not to worry, we’ll dive into more exiting examples later. <Back to intro> <Back to: Read More...
Posted Tuesday, August 18, 2009 11:32 PM by erwinvandervalk | 6 Comments

the difference between model-view-viewmodel and other separated presentation patterns

This is the second blog post in a series on the Model View ViewModel pattern. Before I’m going to dive into the details of the Model View ViewModel pattern, I thought it is handy to describe the differences and similarities between this pattern and other Read More...
Posted Friday, August 14, 2009 9:55 PM by erwinvandervalk | 2 Comments

how do i do… With the Model-View-ViewModel pattern

While building the Composite Application Guidance for WPF and Silverlight (AKA Prism V2), we relied heavily on the Model View ViewModel pattern. But while this pattern is definitely the best thing ever, it took me a while to come to grips with it: First Read More...
Posted Wednesday, August 12, 2009 12:46 AM by erwinvandervalk | 3 Comments

Unveiling my latest project

Hi guys, Sorry, it has been a bit silent on my blog. But for a good reason. For the last couple of months, I’ve been secretly working on a new project. And this thing is going to be HUGE! Bigger than windows! Prettier than the IPhone and far more influential Read More...
Posted Saturday, July 18, 2009 1:11 AM by erwinvandervalk | 0 Comments

Using interfaces and base classes in different assembly using vsewss 1.3

In a previous post , I mentioned that there are difficulties with using the Visual Studio extensions for Windows SharePoint Services (VSeWSS) in combination with interfaces. It turns out that this problem is not just limited to using base classes, but Read More...
Posted Monday, June 08, 2009 6:32 PM by erwinvandervalk | 2 Comments

Sharepoint guidance v2 – drop 9

This week, we published the results of interation 9 to our codeplex site. You can get it here: http://spg.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=27299 In this drop, we have addressed a number of tasks: Implemented trusted facade pattern and Read More...
Posted Wednesday, May 13, 2009 5:16 PM by erwinvandervalk | 3 Comments

sharepoint guidance drop 8 video online

Hi guys, Our drop 8 video is online on Channel 9. Check it out: Happy watching and keep practicing! _Erwin Read More...
Posted Thursday, April 30, 2009 6:08 PM by erwinvandervalk | 1 Comments

how to build an outlook style application with prism v2 – Part 2

A while ago, I put an example application on my blog on how to build an outlook style application . The last couple of weeks, I’ve been working on a new version of this app. I’ve done some bugfixes, but also included support for opening use cases in a Read More...
Posted Wednesday, April 29, 2009 7:45 PM by erwinvandervalk | 7 Comments

sharepoint guidance v2 – drop 8

Last Friday, we’ve released drop 8 of our Guidance.   What did we tackle in iteration 8 The main theme in drop 8 was exception handling in SharePoint. But we also did a bunch of refactoring in the application: Service locator We want to create a Read More...
Posted Monday, April 27, 2009 5:23 PM by erwinvandervalk | 2 Comments
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