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  • Blog Post: Creating a Data Service Provider – Part 5 - Query

    In Part 4 of our series showing how to implement a Custom Data Service Provider we hooked up an incomplete implementation of IDataServiceQueryProvider , just enough to get the ServiceDocument and $metadata working. In this part we’ll get query working too. To do that we need to know where the data...
  • Blog Post: Creating a Data Service Provider – Part 3 - IDataServiceMetadataProvider

    UPDATE: I’ve made a few updates to the code / write-up to reflect refactors I’ve made as I’ve implemented more of the interfaces. This is Part 3 of my ongoing series on Creating a Data Service Provider , and in this post we’ll look at how to implement IDataServiceMetadataProvider IDataServiceMetadataProvider...
  • Blog Post: Tip 3 - How to get started with T4

    So if you've been reading the Entity Framework Design Blog you will have heard us talk about T4 . It is a technology that ships with Visual Studio 2008 (and 2005 as a separate download). In .NET 4.0 the Entity Framework is leverage T4 to help with Code Generation and Model First scenarios. In fact...
  • Blog Post: LINQ to Objects and Buffer<T>

    I was debugging a problem a couple of days ago, when I learned something interesting. I had some code that looked like this: foreach(Employee e in manager.Manages) { … } The manager.Manages property returned a custom implementation of ICollection<Employee> that lazy-loads it’s data from somewhere...
  • Blog Post: SaveChanges(false)

    Most of the time the Entity Framework (EF) can manage transactions for you. Every time you Add an Entity, Delete an Entity, Change an Entity, Create a Relationship or Delete a Relationship in your .NET code, these changes are remembered by the EF, and when you call SaveChanges() these are converted to...
  • Blog Post: Blogging database scripts

    For a while now I've been using a blogging database for demos, presentations, videos etc. For example I used my little blogging database for the Getting Started with the Entity Framework video I did. Every time I do something with this database I invariably get asked by people if they can have...
  • Blog Post: Sample Oracle Provider for EF

    Jarek has released his sample provider for Oracle here . In his post he talks about a few of the more notable challenges he had and how he got around them. If you are writing an EF provider this is gold!
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