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Mahesh Sabnis discusses the WCF service security integration with ASP.NET Membership provider which is very useful while building Silverlight business applications.

Source: Dot Net Curry

WCF has provided many benefits for developing secure, scalable distributed applications. One of the nice features of WCF service security is its integration with ASP.NET Membership provider. Using this provider, a caller can be authenticated by the WCF service against the user credentials stored in the SQL Server ASPNETDB database. In this article, we will see how a Silverlight client caller can be authenticated against the WCF service using this membership provider.

Dan Wahlin explains about the DomainContext available with WCF RIA Services.

Source: Dan Wahlin's WebLog

The DomainContext available with WCF RIA Services provides a lot of functionality that can help track object state and handle making calls from a Silverlight client to a DomainService. One of the questions I get quite often in our Silverlight training classes (and see often in various forums and other areas) is how the DomainContext can be abstracted out of ViewModel classes when using the MVVM pattern in Silverlight applications. It’s not something that’s super obvious at first especially if you don’t work with delegates a lot, but it can definitely be done. There are various techniques and strategies that can be used but I thought I’d share some of the core techniques I find useful.

Watch a recording of Gill Cleeren's webinar 'Build a Silverlight 4 Application end-to-end' delivered on December 15th, 2010.

Download the slides used during the webinar | Download the demos | Download the Q&A document

Gill covered the following topics:

1. SketchFlow
2. WCF RIA Services
3. Data binding & DataGrid
4. MVVM
5. MEF
6. Commanding & behaviors
7. Messaging, navigation & dialogs
8. Custom controls & third party controls
9. OOB
10. Printing

Since Data binding and MEF were already covered in previous webinars (recording of webinar on Data Binding, recording of webinar on MEF), these topics were reviewed only briefly in this webinar.

Due exceeding the scheduled webinar time, the questions submitted during thi webinar will be replied personally via email to the attendees who asked them. A document with all questions and replies will also be published here soon.

Become a SilverlightShow Member to receive all webinar news and updates by email.

Tim Heuer announces the release of an update to Silverlight 4. Fixes have been made to Diacritics and Trusted & Signed Applications.

Source: Method ~ of ~ failed

This update will be provided via Microsoft Update and other auto-update mechanisms for users. We felt the need to service these issues because of the lack of a usable workaround for customers. In the end this will benefit all Silverlight out-of-browser applications.

In this article, Sheo Narayan describes the steps to insert and load records from SQL Server database using LINQ to SQL and WCF Services.

Source: .netFunda

To understand this article, you should have very basic knoweldge about Silverlight and LINQ to SQL, rest this article should take care. To describe how to Insert and Load records using LINQ to SQL in Silverlight, I have taken following database table structure as an example.

In this short blog post, Benjamin Gavin shows the solution to a basic RIA Services problem he recently experienced.

Source: virtual.olympus.blog

This is going to be a quick post just to get the solution out there for people who may be running into this issue.  If you're like me, you host your sites on remote servers and you don't always have direct control over the 'IIS settings’ of the site.  This can be especially difficult if you are trying to deploy something like a Silverlight 4 RIA Services application.  The problem I ran into this evening was the following, I got the site up and running and everything looked good, but when I went to launch the administrative application which is powered by Silverlight 4 RIA Services, I noticed that none of my data was coming back and saving didn't work properly.

In Jeff Handley's last post that announced the December 2010 Toolkit release, there was some confusion about the Product vs. Toolkit. With this post he wants to clear up any confusion he caused.

Source: Jeff Handley's Blog

Up until now, the WCF RIA Services team has always published 2 installers with each release: 

    1. The actual “Product” bits – What gets installed as WCF RIA Services (with a specific version number) 
    2. The additional “Toolkit” bits – What gets installed as WCF RIA Services Toolkit

The Product installer is where our official product features reside. This includes our core .NET and Silverlight assemblies such as the LinqToEntitiesDomainService and the Silverlight DomainDataSource control.

Jeff Handley has a quick overview of what's included in WCF RIA Services Toolkit December 2010 release.

Source: Jeff Handley's Blog

For today’s Silverlight Firestarter event, we thought it would be a great opportunity to put out another drop of our Toolkit. Here’s a quick overview of what’s included in this release.

This Toolkit release builds on top of the WCF RIA Services V1.0 SP1 Beta release from October. If you aren’t yet using the SP1 Beta release, you can read more about it in my post that was published during PDC 10.

In this post, Jeremy Likness explores the difference between using the actual contract for a WCF service in Silverlight versus using the generated client.

Source: C#er : Image

There is no code project for this because the nuance is in the way you call the service, not the example itself, but there should be enough code in this post for you to recreate the example if you want to test it yourself.