One of the recurrent questions people ask me in the forums is about the applying of security constraint to the applications being developed. The last releases of useful tools like WCF Ria Services added the capability of bringing the security context from the server to the plugin running into the browser. This let the developer to have the current logged-in user and his roles available to apply rules to elements of the user interface.

With WCF Ria Services you can create easily an AuthenticationDomainContext and when you make a reference to it from a Silverlight project you will have available a class named WebContext.

1.Introduction

There are several container controls in Silverlight . One of them is panel. Container control like for example StackPanel host another controls. Data presentation controls like ListBox inherits from ItemsControl. ItemsControl contains set of items to display and has ItemsSource property.ItemsControl is responsible for creating visuals for each item and placing them in a panel.

Main panel that holds items in ItemsControl is ItemsHost property. If we set this panel to be StackPanel for large datasets, ItemsContainerGenerator will generate containers that are off visible screen.

The Silverlight Tour is one of the most intensive courses in Silverlight 4. It takes just 4 days to learn and experience the ins and outs of design, development and server-side programming with Silverlight.

We talk to one of the course organizers in Canada - Laurent Duveau - on why should a person invest in attending this course, and what s/he should expect to achieve through it.

Q. Laurent – the Silverlight Tour announced a draw giving one free pass to The Silverlight Tour in Vancouver, May 3-6, 2010 to a member of SilverlightShow Community.

One of the new Silverlight 4 features allows applications talking to native COM components through COM Automation classes. Perhaps one of the most interesting use case for this new COM interoperability feature in Silverlight LOB applications is interacting with locally installed Microsoft Office applications to work with their documents.

This article will focus on creating a new MS Word document using Word’s mail merge feature. Mail merging lets user create a number of personalized documents using pre-made templates.

 Sample RSS Feed application using Windows Phone 7 Series SDK.

Shows RSS feed title list from http://www.visitmix.com/RSS 

Article details showed in WebBrowser control based on user selection in the list.

 RSS app code 

This is Denislav Savkov image slider control ported to windows phone 7 series.

Please find the url of orignal silverlight control.

http://www.silverlightshow.net/items/Image-slider-control-in-Silverlight-1.1.aspx

Ported version of the control. 

PhotoViewer.zip

1. Introduction

In the first part of the article, I tried to describe what is RX Framework and what can be done with it. One thing I’ve missed to mention was how RX could be used for asynchronous service calls. Namely, this is the accent in the second part of the article. For those who missed the first part, you could read it here.

The demo source code could be downloaded from here.

We talk to the First Runner-up in SilverlightShow Eco Contest Levente Mihaly on his impressions from the Eco contest, the application he submitted in the contest, and his expectations towards MIX10. Though unexpected circumstances prevented him from attending MIX, he is looking forward to watching the MIX sessions online.

Meet the First runner-up Levente Mihaly!

Q. Levente - please introduce yourself for those of SilverlightShow community who haven't had the chance to meet you.

A. I'm from Hungary, studied Computer Engineering/Science at Budapest University of Technology and Economics, finished Msc.

Introduction

If you work with Silverlight or WPF, you have probably met the phrase “MVVM”. Almost everyone who is anyone in the WPF / Silverlight scene has their own MVVM framework, and their own way of explaining and teaching MVVM. Scary terms like IoC, Dependency Injection, Commanding Frameworks, Event Aggregators, Unit Testing, etc just roll off the tongue of the MVVM experts. This is one of the reasons why MVVM is intimidating for a lot of people. Still, you can create perfectly valid MVVM applications without even knowing what those terms mean.

Next in our series of interviews with SilverlightShow Eco Contest winners is the Community Vote winner Cigdem Patlak. We talk about her expectations for MIX, sessions she would be most willing to attend, people she would like to meet there, and of course - how it feels to be a community winner in such a competitive and challenging contest!

Meet Cigdem Patlak!

Q. Cigdem - please introduce yourself for those members of SilverlightShow community who haven't had the chance to meet you.

A.