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Here are a few more resources I hope you will find useful: Recently I had a conversation about EF4 with Carl and Richard of .Net Rocks, and it went up on their site today. Have a listen at http://www.dotnetrocks.com/default.aspx?showNum=451 .
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This week I gave a talk at TechEd focusing on architectural considerations as well as some useful tips for creating n-tier applications with the Entity Framework v3.5SP1. The code from the simple sample application is now available at http://code.msdn.microsoft.com/dtl401sample/
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Today I was looking at a post in the forums where someone asked a very natural and common question about the EF that I end up answering pretty frequently. So I decided to put my answer here on my blog to make it easier to refer back to the answer
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Check it out at http://www.dnrtv.com/default.aspx?showNum=118 . In this episdoe we build on the first EF dnrTV by looking at using the EF in a variety of scenarios including ASP.Net web pages with the Entity Data Source Control and with ASP.Net Dynamic
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Over the course of quite a few posts during the last several weeks I’ve shared source code that adds up to an implementation for EntityBag<T>. Piecing together a project from all those snippets, though, would be a pretty painful task, so I put the
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Here’s the last piece in the EntityBag saga. RelationshipEntry is a small, DataContract serializeable class which wraps an ObjectStateEntry that represents a pair of related entities. It contains the name of the relationship, the state of the entry, and
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For this post, I’m going to set a new personal record for least prose/most code. We’re going to look at the core of ContextSnapshot, and the code includes extensive comments so we’ll mostly let it speak for itself. Constructors We have two different constructors
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Well, we’re moving right along—at the fourth part in this series already. I imagine, though, that some of you may be chomping at the bit because you’ve waded through three posts worth of my ramblings without really getting to the hard part yet. At the
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Now that we can construct an EntityBag, we’ll continue pulling apart the top level class. Public Surface First, there are the public properties. The Mode is trivial, but in the case of the Root property, there are a couple of interesting parts: One is
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In my last post I described the way the EntityBag class can be used. This time around we’ll take a look at the implementation of the top-level EntityBag class itself, and in subsequent posts we’ll dig into some supporting classes. The first thing to understand
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Well, I guess it’s high time that I get down to business of sharing and explaining the “general purpose container object” for transporting graphs of entities along with change tracking information over WCF web services which I mentioned in this previous
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So here’s another random little piece of information that might help someone else out (or me 6 months from now)… As I’ve been rumbling about, lately I’ve been playing quite a bit with webservices and serialization—especially DataContract serialization—and
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Roger Jennings, in his recent post Controlling the Depth and Order of EntitySets for 1:Many Associations , makes a case for the importance of two features in an O/RM if you want to build data-centric web services using it: the ability to do a filtered
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In my last post I started a survey of problems with building data-centric web services. When we left our hero (you my intrepid entity framework programmer) things were looking pretty bleak. So far we’ve talked about the challenges. Now let’s talk about
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Let’s say I’ve got a database and even some decent technology to help me to handle persistence between that database and my business objects which create a nice abstraction over the data and enforce validation. I’ve also got clients (maybe rich apps,
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