.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

How to map an Entity framework model to a table name dynamically

Posted By:      Posted Date: May 22, 2011    Points: 0   Category :ASP.Net

I am working in MVC 3 with entity frame work so I am using List, create, edit and details page by razor templates of csHTML5.

But I have found one problem while creating a templates from my company model which Company table available in my existing database which I cannot change.

So all related controller and View has been created along with context, but Problem is comes that created entity framework structure is expected tables “Companies” but in my case I have table with company. Below

View Complete Post

More Related Resource Links

Data Points: Deny Table Access to the Entity Framework Without Causing a Mutiny


Julie Lerman shows database administrators how to limit access to databases from the Entity Framework by allowing it to work only with views and stored procedures instead of tables-without impacting application code or alienating developers.

Julie Lerman

MSDN Magazine August 2010

Entity Data Model and database view returning the same columns as there are in a table


When adding a stored procedure into the Entity Data Model I can select whether the procedure returns a scalar, a (new) complex type or one of the entity types I already defined. 

How do I do something similar for a view?

I mean assuming I have a view like this

CREATE VIEW FilteredFoos as SELECT Foo.* FROM Foo join ... WHERE ...

(that is a view that implements some involved filtering, but returns all columns from one table) how do I add it to the project so that I can use the entity set, but get the Foo objects, not some new FilteredFoo objects.

var foos = myDB.FilteredFoos.Include("Bar").ToList();

foreach (Foo foo in foos) { ...

Thanks, Jenda

using stored procedures in ado.net entity framework model

Hi, I have a issue, i am calling stored procedure through entity model like result=ctx.spname(parmas), i am expecting 0 or 1 as a result after the execution of sp, but its returning unknown values like 178 for number records. Please suggest what went wrong Thanks

Insert Muiple rows Into Table using Entity Framework ??


Dear All,


i'm trying to use Entity Framework to insert into SQL SERVER 2005, using Visual studio 2008.

the following codes are a Button onclick event,

I want to insert into DB multiple rows at a time

protected void Button1_Click(object sender, EventArgs e)
        MyTable NewRow = new MyTable();

        NewRow.columnName = "5";  //columnName is a primary key

        NewRow.columnName = "6";

however this does not work,

it seems we can only insert into DB only one row at a time (??)

if i write :

MyTable NewRow1 = new MyTable();

NewRow1.columnName = "5";


MyTable NewRow2 = new MyTable();

NewRow2.columnName = "6";


MyTable NewRow3 = new MyTable();

NewRow3.columnName = "7";


MyTable NewRow10 = new MyTable();

it will success.

but what if i have more rows, like 20~30 row? i have to seperately write 20~30

MyTable NewRow20 = new MyTable();  ........... MyTable NewRow30 = new MyTable();


?? sorry i'm a beginn

MVVM and Entity Framework - where is the Model part?



I am using Entity Framework to connect to MS SQL (Azure). I have a WPF application, and I am using MVVM. But...where is my Model layer? Right now I have made the 'traditional' Model layer, which then translates the Entity Framework into new objects. That works, - but I am missing out of all the implicit benefit of Entity Framework! If I pulled a collection directly from the Entity Framework to the the ViewModel, I could then work on the collection (add, delete, update) and then just run SaveChanges() on the connection and it was a done deal. But right now it is the object in the Model layer that I work on, and then in this object I have to add, delete or update another object in the database through Entity Framework.

To get the benefits, should I just skip all the extra objects in my Model layer and make the Entity Framework a part of the Model Layer (although it is also a data access layer, of sorts)? Or is there a way to pass the Entity Framework objects through the Model layer smoothly so I still maintain the wonderful SaveChanges() functionality?



Dynamic Data using Code First Entity Framework Model


I have used Dynamic Data before using LinqToEntity where my Entity model used the Data First model and the GUI.  Now I am trying to use the Code First model witht he Entity CTP 4.  I have my model created and created a new Dynamic Data site.  I read that I need to replace the default RegisterContext call:

DefaultModel.RegisterContext(typeof(PriceLoaderContext), new ContextConfiguration() { ScaffoldAllTables = true });


DefaultModel.RegisterContext(new DomainModelProvider(typeof(PriceLoaderContext)), new ContextConfiguration() { ScaffoldAllTables = true }); 

When I search further on DomainModelProvider, I find that it is part of the WCF RIA. Is this correct? Is this what I need for this to work? Has anyone else done this and got it to work?


Entity Framework - Automatically filtering where IsDeleted in model-first scenario


I am using a model-first development approach with Entity Framework, meaning I make schema changes in a designer in Visual Studio, and use the Generate Database from Model command to generate a a SQL script for creating all of the appropriate database tables which match the model.

I am trying to figure out the best (any) approach to automatically filtering on IsDeleted = false with my various entities. I don't want to have to constantly be adding an IsDeleted = false condition to all of my queries, and lazy loading, etc... So for example, ideally I would like to be able to write the following code, and know that it is only return entities which are not logically deleted:

var people = context.People;

So I have attempted to implement a few different approaches to no avail:

1.) Within the designer, add a condition to each entity with IsDeleted = 0. The problem with that is that EF only supports having one mapping per property. If I have a condition that refers to

Entity Framework Table Mappings


Hi Everyone, I am busy developing an application using EF4 and MVC2. My development database has a few extra fields that is not in my production database. I have removed the fields from the Model, and published my application to my web server. But now I am getting errors that says I have some invalid column names, but I have removed it from my model. If I go to my Mapping Details, I see the fields removed from the Model are still there, but not mapped to anything.

Any ideas how to get around this problem?



Data Points: Demystifying Entity Framework Strategies: Model Creation Workflow


The Entity Framework now includes more ways than ever to create a conceptual model, starting first with just your code, a model created with the visual designer, or a legacy database. We help you choose which one's right for you.

Julie Lerman

MSDN Magazine May 2011

Multiple database support with Entity Framework

One of the features introduced in Entity Framework is being database independent. Which mean each database provider can support Entity Framework by implementing its provider.

This feature allows you build applications independent from the underplaying database provider. In this post I'm going to show how to build an application that support multiple databases using same conceptual model made by Entity Framework.

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Creating a Generic Entity Framework 4.0 Repository

With .NET 4.0 right around the corner, I thought it would be cool to download Visual Studio 2010 beta 2 and start playing around with the next release of Entity Framework.

The initial release of Entity Framework came with a great deal of criticism. To make matters worse, there was a large uproar when it was rumored that Microsoft would be abandoning LINQ to SQL, in favor of Entity Framework. This was because, at the time, many developers felt Entity Framework was an inferior technology to LINQ to SQL. To set things right, Microsoft proactively moved forward with improving Entity Framework, in time for the 4.0 release of the .NET Framework. This is good news because my initial impressions, so far, have been nothing but positive.

ASP.NET 4.0 Dynamic Data and Many to Many Entity Framework Entities

I did not play much with Dynamic Data controls in VS2008 and just made a cool discovery in VS2010 Beta 2. This may not even be new, but as I'm sitting 30,000+ feet over the Atlantic ocean, I don't have access to VS2008 at the moment to check.

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Entity Framework 4 Tips for WinForms Development

I've been recently working on a smart client (WinForms) application backed by Entitiy Framework 4 (EF4) on Visual Studio 2010. In this blog post I will try to give you some tips regarding some limitations and points to be careful about EF4.

Data accessors or Entity framework


The entlib 5 sugest me to use with data accessors for mapping data from database to my data objects (ORM).

But in .NET 3.5 and especially in .NET 4, I can use in entity framework as ORM methodology for data objects.

What data accessors uses advantages over the entity framework?

What differences that should be affect on my using decisions?

VS 2010: Entity Framework 4.0 and WCF Data Services 4.0 in Visual Studio 2010


Elisa Flasko takes you through a sample weblog application to demonstrate how new improvements in Entity Framework and WCF Data Services work together to simplify the way data is modeled, consumed and produced in Visual Studio 2010.

Elisa Flasko

MSDN Magazine April 2010

ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend