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system.data.objects dev guy

Ramblings about ADO.Net, the Entity Framework, and other random things from a dev guy.

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AttachAsModified revisited
It seems like on a fairly regular basis these days I encounter a question or an issue about the EF to which the answer is “I know I wrote a blog post about that…”  Then when I go search my blog and find the post I discover that the post was written Read More...
It’s time to rip up EntityBag and throw it away
A couple of years ago when the overall shape of what we would ship in the first release of the entity framework became apparent, I realized that one of the biggest issues users of that release would fight with was creating N-tier applications.  So Read More...
D3: Building Great Software is a Battle, Don’t Leave Any Assets on the Sidelines
Another D3 release is up.  This time I continued my focus on fundamentals.  Some of this is tedious, but as I establish solid mechanics I’m starting to gain some momentum.  The theme for today is using every last asset at your disposal Read More...
D3: Fun with Concurrency and Model First – Part 2
In my last post I began the story of how I added concurrency checking capabilities to D3—we conquered a bug in the model first workflow activities in VS 2010 beta 1.  Next we need to look into ways to customize the SSDL generated so that the concurrency Read More...
D3: Fun with Concurrency and Model First – Part 1
The second D3 release is now up at: d3-0.0026.zip It’s the fruit of my labors pretty much full-time this week because it has been “App Week” on the EF team this week. What a great time! My kids got out of school for summer break last Friday (which means Read More...
D3: Release 0.0010
OK folks, after way too much delay, I’ve finally gotten all my ducks in a row and begun the process of rewriting DPMud.  Since my goal is to completely rebuild it from scratch, the process is going to take a while, and I intend to let you all look Read More...
Links: EF4 Podcast, N-Tier Anti-Patterns, and some thoughts about DDD
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 .  Read More...
Some Great EF Resources
One of the things that’s cool about working on the EF team and getting the chance to talk to customers about what we do and answer questions and such is that I get to hear about lots of things that folks outside the EF team do with the EF.  It’s Read More...
EF4 beta 1 Forums & Docs
Should have included this info in the last post, but better late than never.  If you have questions about EF4 beta 1, the place to ask is the EF4 pre-release forum: http://social.msdn.microsoft.com/Forums/en-US/adonetefx/threads If you are looking Read More...
EF4 Beta 1 now available!
In case you haven’t heard yet, VS 2010 beta 1 and .Net 4 beta 1 are now available for public download, and that means EF4 beta 1 is available as well: http://msdn.microsoft.com/en-us/vstudio/dd582936.aspx Lots of goodies!  Check it out, and let us Read More...
Online TechTalk about POCO and other EF4 Features
Yesterday, while we were here at TechEd, Alex James and I sat down and recorded a short discussion about POCO and other features coming EF4.  Check it out at: http://www.msteched.com/online/view.aspx?tid=ef76e96c-7471-44a6-aa88-1ada037471ca - Dann Read More...
Code Sample from my Applied Entity Framework talk at TechEd 2009 now available
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/ Read More...
Cool things are coming in EF4!
I’m off at TechEd this week talking to customers about the EF—especially about ways to be successful using the EF right now with 3.5sp1.  Meanwhile, though, we’re getting close to releasing the first beta of EF4 (yeah!).  As we gear up for that Read More...
Lots of EF Fun at TechEd Next Week
I’m off to TechEd North America in LA next week where I’ll be presenting a 400-level session titled “Applied Entity Framework”.  The session will mostly be focused on helping folks be more successful using EF3.5sp1 but also with some info about features Read More...
Building N-Tier applications with the EF – The Basics
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 Read More...
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