With “Simplified MVVM” you can simply place your web service methods in your Model. The problem you run into, is how do you make an asynchronous web service call and fill a collection in your ViewModel? One method I have employed in the past is to pass an instance of the ViewModel to the Model, however, the problem this causes, is that you have now tightly coupled your ViewModel and your Model. It is also difficult to consume your Model from multiple ViewModels when you do it this way.

What you really want to do, is place your web...

A while back I made a post about using Windows Authentication with RIA Services and this post builds upon the topics discussed there. To further complicate the situation I needed to deploy a RIA services app to a Virtual Directory inside of a sub-folder in the IIS web root. To illustrate consider this URL pattern: https://intranet.companyname.com/division/applicationname

In this setup division is simply a file system folder inside of the root folder used by the IIS6 web site. Application name is an IIS6 Virtual Directory created under the division folder. For example: https://intranet.mycompany.com/accounting/costcalculator

When deploying to the virtual directory the Silverlight application spits out several 404 errors when looking for the auto-generated...

 

After months of work by Michael and myself, I am happy to announce that Building Websites with DotNetNuke 5 has been published! They have also published a snippet from chapter 6 – Understanding the DotNetNuke Core Architecture: https://www.packtpub.com/article/understanding-dotnetnuke-core-architecture-1 (Somehow Michael convinced them to give him all the credit for the chapter I wrote, but I won’t hold it against him. :P)

The book covers DNN from installation, management, development and deployment. Michael provides some excellent information on how to use Silverlight with DotNetNuke that makes this book worth reading just for that! Anyway, this is not meant to be an advertisement, just an excited post that the book is officially completed and now available! Writing the book was a neat experience and the fact that both of the authors are OpenLight Group founders made it that much better.

If you are interested...

In my article Silverlight MVVM File Manager, I showed how a designer could use the MVVM pattern to create a UI from scratch, without writing a line of code. However, while the run-time file manager looked like this:

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