Entity Framework 6 - Knowledge Base (KB)

Association end is not mapped in ADO entity framework

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...

ADO.NET Entity Framework: Update Wizard will 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...

What are good design practices when working with Entity Framework

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...

"Visual studio 2008 SP1" ADO.NET Entity Data Model template not found

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!

How does Entity Framework work with recursive hierarchies? Include() seems not to work 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 I can Connect to Oracle in ADO.NET Entity Data Model

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 ...

Entity framework with "Group By" and/or "Order by"

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...

Domain Driven Design, .NET and the Entity Framework

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 to solve out of memory exception error in Entity Framework?

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...

How to use Transaction in Entity Framework?

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...

Refreshing a stored procedure in entity framework 3.5

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...

Can I use entity framework 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...