I created a quick video to help you get started with using Jounce. The video starts with a blank slate, steps through installation of Jounce and the creation of a sample view model for a simple contact record that includes validation. You can access the video directly at http://vimeo.com/jeremylikness/jounce-getting-started, or view it below: ...

I'm pleased to announce the official release of Jounce 2.0 for Silverlight 5. There are quite a number of new features available that I'll review in this post. Most significantly, of course, the code base has been updated specifically to target Silverlight 5. A number of bug fixes, feature requests, and Silverlight 5 features have been added. The ...

Jounce is the result of building composite Silverlight enterprise applications for a variety of verticals since Silverlight 3.0 and finding the common problems that needed to be solved. I found many frameworks to be too heavy for the task and always wondered why more did not tap into the native advantages that the Managed Extensibility Framework ...

One common request I get is how Jounce can work with the Navigation Framework. My first reply is always, ''Why do you want to use that?'' As you can see in previous posts, the Jounce navigation works perfectly fine with region management to manage your needs. If you want the user to be able to ''deep link'' to a page, you can easily process the ...

In this second installment about the Jounce framework, I'll share how to get started with Jounce and wire your first view bound to a view model. The Jounce project is available online at http://Jounce.Codeplex.com. Jounce injects itself as a service to the application. In my opinion, using IApplicationService is the right way to handle start ...

Over the next few weeks I will be publishing a series of posts explaining the open source Jounce project that I just released. Jounce provides guidance for building modular Silverlight applications using the Managed Extensibility Framework (MEF) and Model-View-ViewModel (MVVM). Origins I have been building enterprise Silverlight applications ...

After having worked on several major projects that integrated the Managed Extensibility Framework, I thought it might be beneficial to share a retrospective on how it was used what value it provided. These are all ways MEF helped my team build modular Silverlight applications. Unlike my earlier post that covered 10 Reasons to use the Managed ...

The Managed Extensibility Framework (MEF) is a very powerful tool for building modular, extensible Silverlight applications. If you've followed this blog, you'll know that it is not just for applications that anticipate plug-ins, but can be used as an inversion of control container, can facilitate region management, and much more. In preparing the ...

I had a lot of requests after both of my posts about transaction with the Model-View-ViewModel (MVVM) pattern and Yet Another View Locator Pattern to provide a sample project. You asked, I listened, and here it is. I'll walk through how I built the example. Most of the code is taken verbatim from my two previous posts. To make it easier to use ...

Been working with a lot of customers using the MVVM pattern with MEF and the issue always comes up regarding how to marry views to view models. There have a been a few musings on this, from my own ViewModel locator pattern to the even more advanced (and elegant) locator proposed by John Papa et al. This is another pattern you may find useful. ...