Entity Framework 6 - Knowledge Base (KB)

In the ADO entity framework, the association end is not mapped.

I am just starting out with ADO.net Entity Framework I have mapped two tables together and receive the following error:...Error 1 Error 11010: Association End 'OperatorAccess' is not mapped. E:\Visual Studio\projects\Brandi II\Brandi II\Hospitals.e...

The Update Wizard in ADO.NET Entity Framework does not add tables.

I ...added a new ADO.Net Entity Data Model... into my project and used the ...Update Wizard... to add tables into the model. Five of the selected tables were added to the design surface. Two other tables will not add. I select them in the wizard and cl...

When dealing with Entity Framework, what are effective design practices?

This will apply mostly for an asp.net application where the data is not accessed via soa. Meaning that you get access to the objects loaded from the framework, not Transfer Objects, although some recommendation still apply. ...This is a community post, so...

ADO.NET Entity Data Model template not available in Visual Studio 2008 SP1

I have installed Visual Studio Team System 2008 Architecture version: 9.0.30729.1 SP and Microsoft Net Framework 3.5 SP1....When I'm going to add a new item I can't find ADO.NET Entity Data Model template....What's happening?...Thanks!

What role does recursive hierarchies play in Entity Framework? Include() seems to be incompatible with it.

I have an ...Item.... ...Item... has a ...Category.......Category... has ...ID..., ...Name..., ...Parent... and ...Children.... ...Parent... and ...Children... are of ...Category... too....When I do a LINQ to Entities query for a specific ...Item..., it d...

How can I use ADO.NET Entity Data Model to connect to Oracle?

Somebody advised me to use Entity Framework here when I asked this question: ...what is better to build Data layer, Strongly Typed DataSets or Classes...So I read a lot of articles about Entity Framework, I understood that Entity Framework designed to be ...

"Group By" and/or "Order By" in the entity framework

Say we've got a project that allows user to download things. On the main page, I want to show the Most downloaded files ordered by the number of download! All that using EF....How can i do this !! I've tried many things with Group By (Its a nightmare when...

Entity Framework,.NET, and Domain Driven Design

I'm new to domain driven design but want to learn it and use it for a new application. I will be using Entity Framework for data access....The basic layout so far is:...ASP.NET MVC and other clients (mobile devices etc.)... |... Webservices... |..

How do I fix an Entity Framework out of memory exception?

these below codes give whole data of my Rehber datas. But if i want to show web page via Gridview send me out of memory exception error....GenoTip.BAL:... public static List<Rehber> GetAllDataOfRehber() { using (GenoTipSatisEntiti...

In Entity Framework, how do you utilize transactions?

How to use transactions in Entity Framework? I read some links on Stackoverflow : ...Using Transactions or SaveChanges(false) and AcceptAllChanges()?...BUT; i have 3 table so i have 3 entities: ...CREATE TABLE Personel (PersonelID integer PRIMARY KEY ide...

In entity framework 3.5, you may refresh a stored method.

I am using .NET 3.5 SP1, VS 2008 with the entity framework. I originally added a stored procedure to my model which took 2 parameters. Later, I changed the sproc to just take 1 parameter. I ran the ...Update Model From Database... menu option and confirme...

Is entity framework compatible with Visual Studio 2008?

Can I use entity framework (latest version) with vs.net 08?

Entity Framework error - Error 11009: Property ' ' is not mapped

To improve an older project I am forced by the circumstances to use VS 2008 and Framework 3.5 - I have issues with the edmx showing bizarre behavior and not updating the entities as required....The edmx throws me the above error, but when I go to the resp...