The Data Services team blog has begun a series on OData and Authentication. Parts one and two are up. Obviously authentication is an important matter in real-life services, so this is going to be pretty nifty to have. Enjoy!

One of the capabilities that I wanted to call out of WCF Data Service projections on the client is the ability to include expanded entities. So I can write something like the following, which returns the ID, LastName and manager's ID and LastName for...

In case you missed it, something cool is coming on the "RESTful endpoint" side of things for Windows Live / Messenger Connect (to be honest, I don't know much about it, but I found the article terribly exciting, as I'm an avid user). http://windowsteamblog...

This post is the continuation of Layering enumerators ; I wanted to have a much shorter post, but it seemed to me like this would be much more useful if I had all the notes in a single post. First, some caveats. This post deals with the LINQ operators...

The MSDN documentation on the topic does a pretty good job at giving you a high-level view of what happens when you use select to do a projection of the query results, and calls out a number of things that aren't supported when projecting entity types...

Now that I've touched upon XmlReader and how it can be used to stream data while allowing clean layering at the same time, I want to touch on the layer-able interface by excellence in the .NET Framework: IEnumerable<T> . You may have also seen...

I want this now . Anything that can help me stay in touch and prioritize who I get updates from and pull in information from a bunch of different places is a win-win-win in my book. Can't wait for this to be available!

About two years ago, I put up a post discussing how exceptions are streamed in WCF Data Services (called ADO.NET Data Services at the time). Today I want to continue from yesterday's post and discuss how the client implements support for this, but...

I recently got a message through the blog, letting me know about broken links on Showing drag/drop feedback on the WPF adorner layer . Now, this post is from over four years ago, so I hadn't given it much thought in a long time. I'm happy to say that...

If you've spent any time looking at the new Open Data Protocol Client Libraries on CodePlex, you may have run into the internal XmlWrappingReader class. I'll look into why this was a useful thing to have and what important OData processing aspect it helps...

This has got to be one of the most exciting announcements in a while. The source code for the .NET Framework and Silverlight client libraries is available from the CodePlex site. Check out the announcement and bask in the open-ness. Over the next few...

Peter has a great write-up about this , so I won't go into much detail here. Go read his post, then come back for a bit more context. You have always been able to get a data service to process requests using a specific URI as the root. The data service...

I mentioned a little while ago that I was going to cover the DataServiceProviderMethods class. It's a mysterious class, where all methods simply throw a NotImplementedException. You can't subclass to implement the members, you can't provide a hook to...

Morning post, so don't expect anything too deep. I was watching old episodes of Lie to Me while waiting for a sync/build/test cycle on my local machine (well, a bit of an episode, anyway), when I noticed the "Lie to Me Simplified" video in the "Video...

Today, after a series of design posts, we'll be looking at something quite different. If you happen to be debugging a native application, you may find yourself stepping through code that calls a Win32 API and then never checks the last error, maybe...

Go find out all the goodness of the release at http://www.microsoft.com/sqlserver/2008/en/us/R2.aspx My personal favorite? Self-service business intelligence . Anything that empowers end-users is a win for me, and this one simultaneously gives IT more...

This will hopefully be the last post on the subject of building immutable circular references subject (but I make no promises). In today's post, we'll examine the use of deferred references to build circular references for immutable objects. First...

I'm taking a short intermezzo from the mutability / circular reference series, to post a short public announcement-type. You may have noticed in the sample from my last post that I used a HashSet to keep track of which of the two instances I had visited...

This post is a continuation from Mutability model for ResourceType and friends . At this point I'm just going to geek out on design options - this doesn't really apply to the WCF Data Services API. The problem is this: let's say we want to have two...

If you've read the post on the new types available in the System.Data.Services.Providers namespace , you might have jumped in and tried to write your own metadata provider for some not-quite-there interesting data model. Not for the faint of heart, but...

Seems like it was yesterday when I was writing a brief overview of the System.Data.Services namespace . Now that .NET Framework 4.0 is available, what's new? More configuration options DataServiceConfiguration implements the IDataServiceConfiguration...

The site is over at http://www.getpivot.com/ , and the video is short and very much worth watching. As a developer, I can only wonder what MSDN would look like with Pivot like they showed for Wikipedia. Enjoy!

So, what can you find in the new System.Data.Services.Providers namespace, and why would you care? Typically, you'll write data services using a well-defined data model with rich querying and update capabilities, like the Entity Framework . In this...

The C# language has generally been going in a direction where the language really helps you out in being more expressive, by spending more time writing "the meat" of your code, and less time writing boilerplate code. A couple of examples are auto-implemented...

Watch it live here: http://www.microsoft.com/visualstudio/en-us/watch-it-live Very exciting stuff! Check the Schedule tab on the right and see all the good content that's coming. A lot of work has gone into this release, and MSDN will also be there...