ADO.NET :: Add ADO.NET Entity Data Model?

Nov 15, 2010

For VS 2010, I am trying to add new item of existing mdf file. By : Add new item -> Data -> ADO.NET Entity Data Model -> Generate from database.

When I reach the step of "Choose Your Data Connection", under the : "Which data connection should your application use to connect to database?" The combo-box is empty. How can I make that combo-box not be empty (some configurations?)

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I have just started using MVC2 in C# using the Entity Framework models (CIOps.model) created from an SQL database. I can create the controller and views using single tables of the model in MVC2, but I just cannot get my head around how to get data from multiple entity tables into the controller (similar to joins in T-SQL). I have included an example below of the controller code that works with a single entity table, tbl_tours (tbl_tour in DB).

Could someone please illustrate how this code would be changed to include additional columns from FK tables in addition to tbl_tours columns. E.g. the clients name from the tbl_clients, the coordinators name from the tbl_employees, and costs from tbl_costs entities? Is it possible to do this directly using the EF model entities/classes that are already created and not use LINQ, POCO, Repositories, etc.? The FK relationships are already in the EF models. I have included the whole controller code, but I just need a few examples of how to join the multiple entities, not rewrite every CRUD function function in the controller. I think this will get me over the hump in using EF in an MVC2 App. Also ignore the fact I am using the home controller, this will change in the application.

[Code]....

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MVC :: How To Use Attribute [Display(Name="")] For Model That Comes From An Entity Data Model

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[Code]....

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Function Map() As ActionResult
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I've been using VS2010 to look at the new ASP.NET and specifically MVC 2. I have gone through the 0.8 release of the MvcMusicStore sample on CodeProject (good job so far).

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SQL Server Database Text File XML File XML Schema That's everything (meaning when C# is selected at the top of the dialog's installed templates).

I've re-installed VS2010 (gone through the control panel and the maintenance option for VS2010). There's no Linq, Data Set, Database Unit Test, nothing....

It was there before, it's not now.

UPDATE : I did find this article: [URL] I did run devenv /installvstemplates. It ran without errors, however, the error still persists.

The article said if the "solution" was not a real solution, to re-install VS2010 (Really???). So I went to do so. The ADO.NET entity object framework is installed.

Why would VS2010 "forget" something so intrinsic?

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