Visual Studio
Testing With a Fake DbContext
One of the most popular posts on my blog has been “EF CTP4 Tips & Tricks: Testing With Fake DbContext”. That post was built on a pre-release version of Entity Framework so I thought I’d provide an updated post on top of the DbContext API surface we ended up shipping. In this post we are [...]
Read Full Post | Make a Comment ( 7 so far )Running & Scripting Migrations from Code
Code First Migrations is included as part of Entity Framework starting with the EF 4.3 release. Migrations are normally created and run from the Package Manager Console in Visual Studio. These commands are just thin wrappers over public APIs that you can call directly from your own code. In this post you’ll see how to [...]
Read Full Post | Make a Comment ( 9 so far )Customizing Code First Migrations Provider
Code First Migrations is included as part of Entity Framework starting with the EF 4.3 release. One feature we haven’t really blogged about yet is the ability to include additional arguments in a migration operation. These arguments are then made available to the SQL generator. You can then derive from the SQL generators that we [...]
Read Full Post | Make a Comment ( 4 so far )Magic Free Code First Migrations
This post is now out of date. Be sure to check out EF 4.3 Beta 1. <transparency>I work for Microsoft</transparency> (just kidding… but I couldn’t leave the tag open) We recently released a very early preview of Code First Migrations and it’s been getting some mixed feedback, the negative feedback falls into three buckets: [...]
Read Full Post | Make a Comment ( 15 so far )EF CTP4 Tips & Tricks: Running Additional DDL
This is the fifth in a series of posts about the recently released Entity Framework Feature CTP4, now affectionately known as “EF Magic Unicorn Edition”. For this post I’m going to assume you have a basic knowledge of Code First using DbContext. One common question I hear is “how do I include additional indexes (or [...]
Read Full Post | Make a Comment ( 4 so far )EF CTP4 Tips & Tricks: WCF Data Service on DbContext
This is the fourth in a series of posts about the recently released Entity Framework Feature CTP4, now affectionately known as “EF Magic Unicorn Edition”. For this post I’m going to assume you are somewhat familiar with the Productivity Improvements for EF and WCF Data Services. You can download the completed VS2010 project from this [...]
Read Full Post | Make a Comment ( 13 so far )EF CTP4 Tips & Tricks: Mapping to an Existing Database
This is the third in a series of posts about the recently released Entity Framework Feature CTP4 (AKA “EF Magic Unicorn Edition”). Most of the samples/demos of Code First so far have focused on creating a new database that is generated from a set of classes, however Code First also can be used in scenarios [...]
Read Full Post | Make a Comment ( 21 so far )EF CTP4 Tips & Tricks: Find
This is the second in a series of posts taking a quick look at the some of the features in the recent Entity Framework Feature CTP4, also recently dubbed “EF Magic Unicorn Edition”. In the last post we looked at Include with lambda and today we are going to look at the new Find method. [...]
Read Full Post | Make a Comment ( 4 so far )EF CTP4 Tips & Tricks: Include with Lambda
The release of Entity Framework Feature CTP4 was recently announced and included some walkthroughs touching on the core functionality included in the CTP. Over the next couple of weeks I’m going to post up a series of short articles that cover some of the finer points in the CTP. The CTP includes some work called [...]
Read Full Post | Make a Comment ( 23 so far )Invalid value for ‘OSVersion’
If you have a Visual Studio Solution that is failing to build with the error message Invalid value for ‘OSVersion’ the simplest way to fix this is to set an explicit value for OSVersion in your project file; Navigate to your projects folder in the file system Locate the project file (.csproj for C# .vbproj for [...]
Read Full Post | Make a Comment ( 2 so far )
