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UPDATE: This post was updated on May 29th 2013 to reflect changes to simplify the SelectExpandClause...

Date: 05/10/2013

Next week we will release an official RC of the Microsoft ASP.NET WebAPI OData assembly. This marks...

Date: 12/07/2012

Background and Plans For a while now we’ve been shipping an early pre-release version of an...

Date: 12/06/2012

Since my last set of blog posts on OData support in WebAPI (see parts 1 & 2) we’ve been busy...

Date: 11/02/2012

The recent preview release of OData support in Web API is very exciting (see the new nuget package...

Date: 08/20/2012

I love the Actions feature in OData – which is hardly surprising given I was one of its...

Date: 02/03/2012

In my last post I blithely said 'This is where judgment comes in...'. Unfortunately judgment isn't...

Date: 06/06/2011

For a while now I've been thinking that the best way to get better at API & protocol design is...

Date: 06/03/2011

If you didn't get to TechEd - no problem - videos of all the sessions are available here. Including...

Date: 06/12/2010

Yesterday I promised to share all the code from my Best Practices – Creating an OData Service...

Date: 06/10/2010

Background info: This post builds on Parts 1 thru 8 which teach you how to create a typed Data...

Date: 03/02/2010

Over the last couple of years I’ve found myself in lots of situations where I’ve wanted to get...

Date: 03/01/2010

In parts 1 thru 7 we made a Read / Write typed data service provider, although it was a little...

Date: 02/23/2010

There are many good arguments for hiding away the lower layers in your stack – essentially the...

Date: 02/22/2010

Background: While writing the update post in my Data Service Provider series I ended up writing this...

Date: 02/13/2010

If you are trying to use POCO classes in EF 4.0, it is relatively easy to run into problems with the...

Date: 02/11/2010

In Parts 1 thru 6 we created a custom Read/Only provider over an in memory list of Products. Now...

Date: 02/11/2010

By default when you add a Data Service Service Reference you get automatic code-generation, which...

Date: 01/27/2010

In Tip 45 I showed you how to build a connection string at runtime, which is pretty nifty. The...

Date: 01/26/2010

Whenever I find myself implementing a series of interfaces to plug into a framework or server, I...

Date: 01/25/2010

In Part 4 of our series showing how to implement a Custom Data Service Provider we hooked up an...

Date: 01/19/2010

Recently I’ve been spending some of my time playing with JQuery. And because Data Services can...

Date: 01/18/2010

This is Part 4 of my ongoing series of posts showing how to create an Custom Data Service Provider....

Date: 01/14/2010

UPDATE: I’ve made a few updates to the code / write-up to reflect refactors I’ve made as I’ve...

Date: 01/07/2010

Introduction Data Services sits above a Data Service Provider, which is responsible for interacting...

Date: 01/07/2010

To create a read-only Data Service Provider (or DSP) you need to implement two Data Services...

Date: 01/07/2010

One of the the coolest things about Data Services is its provider model. Any data-source can be...

Date: 01/04/2010

I’ve been playing around with creating a custom Astoria Data Service Provider, aka DSP, for a while...

Date: 12/11/2009

Every wonder if you can host an Astoria Data Service in WCF? Well turns out the answer is yes, in...

Date: 12/10/2009

Problem: Take this code: Category oldCategory = ctx.Categories .Include("Products") .First(c =>...

Date: 12/01/2009

This time a real simple one prompted by this question on StackOverflow. Problem: If you tell the...

Date: 11/29/2009

Background By default the Entity Framework embeds its metadata inside your assembly as a resource....

Date: 11/29/2009

I recently did a crash course in Data Services and OData. While doing so I realized my notes might...

Date: 11/18/2009

Problem: When writing code against a Data Service, like say SharePoint, the client application must...

Date: 11/13/2009

Daniel Wertheim left a couple of comments on Tip 42, that point to a series of posts he has written...

Date: 11/13/2009

Background: When we give examples of how to use Code-Only we always start with a strongly typed...

Date: 11/09/2009

Problem: Imagine that you have these entities public class Product { public int ID { get; set; }...

Date: 11/07/2009

Scenario: In EF 4 we have FK relationships, available for the first time in .NET 4.0 Beta 2, so it...

Date: 11/01/2009

The normal way that you create an ADO.NET Data Services (aka Astoria) Service is by creating a class...

Date: 10/14/2009

There have been lots of posts on the EFDesign blog talking about how the features in Code Only have...

Date: 10/13/2009

Problem Someone asked how to do a Conditional Include a couple of days ago on StackOverflow. They...

Date: 10/12/2009

I had an interesting in passing conversation with someone today about tagging file systems… which...

Date: 10/09/2009

While writing my tips series and writing EF controllers for MVC I found that I regularly wanted to...

Date: 09/23/2009

If you write a LINQ to Entities query like this: var results = from c in...

Date: 09/17/2009

UPDATE: thanks Zeeshan for pointing out that by default only non-nullable columns end up in the key...

Date: 09/01/2009

Imagine that in your database you have a cascade delete on an FK relationship. Something like this:...

Date: 08/18/2009

We recently released a CTP that extends EF 4 Beta 1 which included Code Only. You can read more...

Date: 08/11/2009

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