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Entity Framework 6 - Knowledge Base (KB)

36 results for: in tag: visual-studio-2010

ApplyCurrentValues in EF 4

I just was playing with EF 4 in VS 2010 RC and just found that ApplyCurrentValues dont work when the Property is of type bool and the newly value is false !!!??? ... and it works when the newly value is true . ... I dont know if this is a bug or I'm mis...
.net entity-framework visual-studio-2010
asked by ali62b

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...
.net c# entity-framework visual-studio-2008 visual-studio-2010
asked by loki

How do I manually edit table mappings in ADO.NET in Visual Studio 2010?

I can't seem to find the answer to what I think is an easy question. I have a Entity model I just created and I want to set the name of the table and the columns by hand. I can see the "mapping details," but how do I edit them or add to them?
ado.net entity-framework visual-studio-2010
asked by Bialecki

Don't see Entity Framework Template after Visual Studio 2010 install on Windows 7 64 bits

I just install Visual Studio 2010 on a 64 bit VM with Windows 7 64 bit. The VM is on an ESXi Hypervisor. When I tried to create my first project I don't see the Entity Framework template (ADO .NET Entity Framework). Am I missing a step here? Any and a...
entity-framework visual-studio-2010 windows-7
asked by Brono The Vibrator

Entitiy Framework: "Update Database from Model" instead of "Generate Database from Model"

I have created a Entity Framework 4 model with Visual Studio 2010 and generated a database from it. Now I found myself adding new properties (with default values), changing documentation of columns, changing names of columns, changing types of columns sev...
entity-framework visual-studio-2010
asked by David

Exporting a large Entity Framework Diagram

I have a fairly large Entity Diagram. I tried to export it to an image, unfortunately because it's so large the image comes out all pixelated....See this link ...http://connect.microsoft.com/VisualStudio/feedback/details/534574/edmx-model-image-export-pix...
edmx entity-framework visual-studio-2010
asked by Stephen Lacy

Can't find ADO.NET Entity Model Browser Window in vs2010

I want to update my ADO.NET Entities Framework Model from the database, but I cannot find the ...Entity Model Browser Window.... There is an example of how to update my model ...here..., but I cannot find how to open the model browser. Could someone pleas...
ado.net entity-framework entity-model visual-studio-2010
asked by John Fischer

MySQL with Entity Framework - what am I doing wrong?

I am completely new to Entity Framework and even ADO.NET in general (don't typically do much work with databases)....I downloaded and installed ...MySQL Connector/NET 6.3.5.......I created a new C# project in Visual Studio 2010....I added a new ADO.NET En...
.net entity-framework mysql nullreferenceexception visual-studio-2010
asked by Dan Tao

Error 175: The specified data store provider cannot be found

I'm using VS2010 with the ...MySQL .NET Connector.... My project that used to work started reporting:...Error 175: The specified data store provider cannot be found, or is not valid....I don't know why, though things got weird after a MS recommended hotf...
.net dataprovider entity-framework mysql visual-studio-2010
asked by Walt Stoneburner

The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid

I have two projects in a solution....PizzaSoftware.Data...PizzaSoftware.UI...In the Data project, I have my Entity Framework model which connects to my database....My UI project has a project reference to Data and here's how it looks like:...I've created ...
c# entity-framework visual-studio-2010 windows-forms-designer
asked by delete

No Entity Data Model (EDMX) Template with Visual Studio 2010 SP1 & ADO.NET Entity Framework 4.1

I'm having a lot of issues with the templates of Visual Studio 2010 SP1 & ADO.NET Entity Framework 4.1...I noticed that other people had these problems, and asked similar questions, but I don't think they gave enough information to make it solve-able....T...
ado.net edmx entity-framework visual-studio-2010 webmatrix
asked by Jarred Sumner

The type or namespace name 'DbContext' could not be found

I am VERY new to ASP.NET MVC (3) and am having a hard time resolving a build error in Visual Studio:...The type or namespace name 'DbContext' could not be found (are you missing a using directive or an assembly reference?)...using System; using System.Col...
asp.net-mvc asp.net-mvc-3 entity-framework visual-studio visual-studio-2010
asked by Chris

Missing ADO.net Entity framework template in VS 2010 SP1

I am having VS 2010 Professional with SP1. I can see EF listed under Uninsall/remove a program list. ...I have already referred these questions which don't have any solution. Hence starting a new thread....SO entry1...SO entry2...Searching over internet d...
ado.net entity-framework templates visual-studio-2010
asked by Sandeep G B

Entity Framework Not Creating Database

Been playing around with the Code First feature of Entity Framework 4.1 using an ASP.NET MVC 3 project....However the database (SQL Server 2008 R2) does not automatically create the table mapping on application startup. Any ideas on how to make it do so?....
asp.net-mvc-3 ef-code-first entity-framework sql-server-2008-r2 visual-studio-2010
asked by mazatsushi

Missing bin/EntityFramework.xml file in Visual Studio 2010 and EF 4.1 DB First

Main Goal... - To deploy a live version of my solution on an IIS. I am currently attempting to do so by building a deployment package through Visual Studio 2010....Issue... - When attempting to build a deployment package or publish my project within Visua...
deployment entity-framework visual-studio-2010
asked by Justin

Installing Entity Framework 4.2 in VS2010

Entity Framework templates and menu items generate errors in Visual Studio 2010 Ultimate on 64-bit XP....The "Reverse Engineer Code First" menu item in Visual Studio tells me that version 4.0.0.0 of System.Data.Entity.dll cannot be found in the GAC, as do...
entity-framework installation visual-studio visual-studio-2010
asked by Paul

Encrypt ConnectionString in entity framework (first code)

How can i protect my connection string? I want to use Entity framework 4.1 (first code) in C#, but it is important to me that other people can not see my Connection String.
c# entity-framework visual-studio-2010
asked by Mahdi jokar

Adding entity frame model to a project

I have problem adding entity framework model to my project. Here is what I am doing:...1- Right click on project...2- Select add...3- In dialog select data from installed templates....4- in installed template I cannot see ADO.NET entity framework template...
entity-framework visual-studio-2010
asked by mans

Entity Framework - CSDL, SSDL, and MSL files

I'm just being picky but I was researching how does Entity Framework generates the DLL from an EDMX file and I saw this on msdn:...The Entity Data Model Designer (Entity Designer) stores model and mapping information in an .edmx file at design time. At b...
ado.net-entity-data-model c# c#-4.0 entity-framework visual-studio-2010
asked by Diego

Updating Entity Framework Model

I have just started using EF and found it cool, but I ran into a problem,...Problem:... I changed my DB schema of a column inside the table User, It was Varbinary(50) previously I then changed it into VarChar(50), and then inside the MyModel.edmx designer...
c# entity-framework linq-to-entities sql-server-2008 visual-studio-2010
asked by Owais Qureshi

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