EF 4.1

Question

where is ContextBuilder that was in Microsoft.Data.Entity.CTP here in EF 4.1?

Answer 1

Hi,

The ContextBuilder has been splitted into two seperate classes for a long time ago (in CTP4), you can read about it in this thread:

http://social.msdn.microsoft.com/Forums/en/adonetefx/thread/5f59aad6-8a0b-4e57-9325-d399493ceadf

also this blog article has a description of this

http://blogs.msdn.com/b/adonet/archive/2010/07/14/ctp4codefirstwalkthrough.aspx

Hope this helps!

---

--Rune

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Answer 2

Hi Rune, thank you for the answer.

I read it, and before you introduce it to me but I couldn't replace my old code:

public class Repository<TContext> where TContext : ObjectContext

{

                [ThreadStatic]

                private static TContext context;

                public static TContext Context

                {

                get

                {

                 if (context == null)

{

var ctxBuilder = new ContextBuilder<TContext>();

var cs = System.Configuration.ConfigurationSettings.AppSettings["ConnectionString.SQL Server (SqlClient)"];

context = ctxBuilder.

Create(new SqlConnection(cs));

                }

                return context;

}

}

}

Answer 3

Hi,

Well, the blog article describes your problem quite good in section 6 Create a derivied context. That describes how you use a model builder to create the model object which you can in turn use to create the object context by calling CreateObjectContext.

I can't see why this shouldn't work for you.

---

--Rune

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