Today one guy from our dev team met some problems with binding of datagrid selected items. Because of SelectedItems is readonly property, we cannot create two way binding for it. After a short discussion we decided to create DataGridSelectedChanged command behavior which will inform our model about selected...

Here’s what I wanted to do: A Silverlight project User logs in A service runs and displays data upon successful login Quite simple right? In ‘pure’ Silverlight, one could probably do this in like 15 minutes, but I wanted to do this using Prism following the MVVM (Model-View-ViewModel) pattern. I added...

This is an extension to my previous blog where I showed my first application using Prism and Silverlight. As for this article, I just want to share the "gotcha's" I learned through a slightly more complex and a real-world (ish) application. See the entire source code here and when you run it...

Another article in the ‘- Silverlight 4’ series (read the first two here: DragNDrop, Right-Click Save As and Local File Access ). In this one we’ll talk about using the ICommand feature, now implemented in Silverlight. Read the announcement in Tim Heuer’s own words here . The commanding infrastructure...

With the increasing popularity of Silverlight as an application development framework the discussion of patterns has grown louder and louder. Fortunately the majority of developers building Silverlight applications have agreed on a pattern that fits well in the Silverlight world called Model-View-ViewModel...

I had the opportunity to give a 1-day workshop covering new Silverlight 4 features at the TechReady conference on Microsoft’s Redmond campus this weekend and wanted to post some of the sample code shown for the people who attended and anyone else who’s interested. The workshop was based on the free Silverlight...

I’ve had the opportunity to give a lot of presentations on the Model-View-ViewModel (MVVM) lately both publicly and internally for companies and wanted to put together a post that covers some of the frequent questions I get on commanding.  MVVM relies on 4 main pillars of technology including Silverlight...

Silverlight continues to grow in popularity as companies realize the different ways it can be used to build both consumer and enterprise applications. If you're looking to get started with Silverlight or simply want to enhance your existing skills we've planned some great sessions at Silverlight Connections...

If you’re interested in getting started with Silverlight development or enhancing your existing skills check out the upcoming Silverlight Firestarter event running December 2, 2010. The event can be attended live in Redmond, WA or viewed online (both for free). Sign-up for the event here . I’m excited...

Thanks to everyone who attended my sessions this week at DevConnections in Las Vegas. I had a ton of fun hanging out with friends and meeting new people at the different talks. Next up is DevConnections Orlando in March of 2011 – looking forward to it. As promised, here’s the code and slides for the...