TLDR: Setup steps to get WCFDS 5.4 up and running JULBS (Julie’s Usual Lengthy Back Story): WCF Data Services (aka WCFDS) updates are being released at a rapid pace. I think they are on a hoped-for 6-week release schedule and they just released 5.4 a few days ago. One of the reasons is that they...

Brian Sullivan was having a weird query performance problem with one particular EF query and asked about it here on Stackoverflow . Some very knowledgeable people asked all the right questions. It made no sense. He finally discovered the source of the problem himself. His code first model defined a string...

Here is a 6 minute preview from my new Pluralsight course, Getting Started with Entity Framework 5.   The course is about 4.5 hours long and I’ve written a small “guide” to it in this blog post: Getting Started with EF5 – New Course on Pluralsight so that you can decide if the course is for you...

I had the pleasure of going to Cambridge this weekend along with a car load of Vermonters (myself, Rachel Reese, Dennis Doire and Kyle Mitofksy) to participate in Boston Code Camp at Microsoft’s NERD Center. We left just as Boston was getting pummeled with snow and a prediction of 10-14”...

While EF5 did not bring a huge amount of change to Entity Framework, one small change in the EF Designer in Visual Studio 2012 made a huge difference for people getting started with Entity Framework. The designer now uses a code generator that spits out POCO entity classes managed by a DbContext by default...

This tweet stopped me in my tracks because I couldn’t reply in a tweet: Stephen Coulson @sdcoulson @julielerman In your opinion what is the best solution for unit testing #EF dependent code? #MockingFramework ? #SQLCE ? or other? It’s a loaded question so I’ll just answer briefly. First: it depends!...

I’ve been loving Visual Studio 2012’s SQL Server Object Explorer (SSOE) instead of always jumping out to SQL Server Management Studio (SSMS) to do database management. SSOE covers many (not all) common tasks…and many more than VS’s Server Explorer let’s you do. But I spent an embarrassing amount of time...

It took us a long time and a bit of luck to get to the bottom of this problem. It turns out that at two completely different client sites they had computers whose machine.config file had been affected in a way that was causing an error in Code First. The error that was being thrown at runtime was: “Unable...

I wanted to give the new Multi-Tenant migration feature in the EF6 alpha (released Oct 30, 2012) a whirl and having done so, thought I would save someone a few steps figuring it out. The specs are very useful and thankfully I’m fairly familiar with migrations already so I didn’t have much...

I haven’t spent a lot of time on CodePlex until EF got there. So between learning my way around CodePlex and also how the EF team is organizing all of their information, I kept missing key information because I didn’t know where it was tucked away. So I thought I would list what I think are the most...