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Andrej Tozon's blog

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Add version 4 components to your Silverlight 3 application with MEF
The current Silverlight version is v3, with v4 in the making (in Beta 1 at the time of this posting). Silverlight 4 is bringing a lot of new features in the core framework and to use them, you would have to migrate your applications to the latest version...
Shidonni - Silverlight-based creative playground for your children
I stumbled upon this really nice Silverlight application today – Shidonni is a sort of social networking application for creative children – it lets them create their own animals, put them in a world that they’ve created, feed them with the food they...
My MEF articles published on SilverlightShow
My two-part article on rebuilding an existing Silverlight application to use MEF (Managed Extensibility Framework) for “selective composition” is now live on SilverlightShow.net ( part 1 , part 2 ). I took my Halloween Gallery application and made it...
SilverlightShow Eco Contest
SilverlightShow.net is running a SilverlightShow Eco Contest ! Write a Silverlight -based application that helps support and promote environment-friendly activities, and you can win great prizes, including a trip to MIX10 event in Las Vegas (MIX10 pass...
Display “My Pictures” in Silverlight application at design time
Following up on The ultimate hack for Silverlight in Blend post from Josh Smith, I tried to make Blend display pictures from the My Pictures folder right in my Silverlight application. Needless to say, it worked as advertised :) The ViewModel is set through...
My articles on SilverlightShow
A few of my Silverlight articles were published on the SilverlightShow site this past two months. The first one is an introduction to Silverlight/(WPF)/Blend behaviors, where I create a Silverlight Halloween Sound Player without writing a single line...
Silverlight 4 WebCam zoom
Fooling around with Silverlight’s WebCam support. The application below will let you zoom in and out of WebCam capture and pan around. Nothing special, just a quick POC for the project I’m building. Silverlight 4 required . tweetmeme_url = 'http:...
Developers, please mind the locale!
I’m observing this really irritating trend with new software lately… I followed up on a couple of tweets today to try the new Silverlight application everyone was RT’ing of. Clicked on the link and the loading animation began. Seconds later, it… stopped...
MVVM with WPF, Silverlight, and… Windows Forms
In my post -NTK09 conference blog post I mentioned one of my MVVM demos was about sharing a ViewModel between WPF , Silverlight and even Windows Forms application. I got a lot of requests for posting sample code online since then, which I intended to...
Silverlight LOB: Validation (#2 – Annotations and shared classes)
In my previous post , I wrote about “the first line of defense” against inputting invalid data in Silverlight applications (or any kind of application, for that matter) – preventing the user from entering invalid data through some an input form. Input...
Detecting duplicate instances of a running Silverlight application
This is a short tip for constraining your Silverlight applications to a single instance, something that’s quite popular in the desktop applications world. What you want to do is allow only the first instance of your application while rejecting all subsequent...
Halloween Live Gallery
With Halloween around the corner, it’s time for some scary photos… In this post I’ll explain how I built my demo application I showed at my Windows 7 Launch talk . Expression Blend 3 shipped with a few interesting samples, available for immediate use...
Windows 7 Launch talk: Building cool applications with MS Expression tools
Windows 7 launch day was fun. I gave a talk on Expression tools (and related) – here’s the PowerPoint slide deck for those who asked for it: I used Expression Blend 3 to build a photo viewer application, which I’ll blog about later; key points here were...
Slides and demo from Bleeding Edge’2009
On this year’s Bleeding Edge conference I had a talk on debugging with my fellow SQL Server MVP . While he covered some common pitfalls developers make on the SQL Server side, I focused on the Silverlight side of development and debugging: possible issues...
Silverlight LOB: Validation (#1)
When taking about data validation in applications, I usually describe the validation as the five-stage process or, put differently, five lines of defense against invalid data. In this post, I’ll write about the first line of defense – preventing the user...
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