entity-framework-5

Currently we are working on the EF 4.3 . We would like to upgrade it to EF5. I have google the upgrade process steps, but I did not get any result. Please help me..! Thanks.. :) Here are two links for you of content I've created on EF4.3 to EF5: article: Moving Existing Projects to EF 5 http://msdn.microsoft.com/en-us/magazine/jj618295.aspx video: Entity Framework 5 Enums and Moving Solution from EF 4.3 http://thedatafarm.com/blog/data-access/video-entity-framework-5-enums-and-moving-solution-from-ef-4-3/ hth julie 来源： https://stackoverflow.com/questions/12652920/how-to-upgrade-from-entity

I am developing a contact log in a website using VS 2010, MVC3 and EF 5 - the entities are created using code first. The data is stored in an SQL Server 2008 R2 set of databases. I want to display a summary of the contact log and have created a view. CREATE VIEW dbo.ContactLogSummaries AS SELECT CLE.ContactLogEntryID, CLE.CaseID, 'Test' AS ContactName, EU.UserName As OfficeUser, CLE.DateAndTimeOfContact, CLC.Category, CLE.ContactDetails FROM ContactLogEntries AS CLE JOIN ContactLogCategories AS CLC ON CLE.ContactLogCategoryID = CLC.ContactLogCategoryID JOIN Control.dbo.EndUsers AS EU ON CLE

Using Database first design and having tinyint (or smallint) column: [MyEnumColumn] [tinyint] NOT NULL I mapped this column to Enum Type in EDM with External Type: NSpace.MyEnumType Name:MyEnumType UnderlyingType:Byte Where NSpace.MyEnumType is defined like this: public enum MyEnumType { One, Two, Three, All } Only to get this error when trying to load entity from context: Schema specified is not valid. Errors: No corresponding object layer type could be found for the conceptual type 'EntityDataModel.MyEnumType'. The following information may be useful in resolving the previous error: The

In my last project I have used Entity Framework 5 Code First. I completed my project but had a lot of pain during the development process. I tried to explain my pain below: I had several data classes in my data access logic layer like Product, ProductCategory, Order, Company, Manufacturer etc... Each class has some references to some other classes. For example, a Product instance has a ProductCategory property. Inside Add and Update methods of my Data Access Object classes I set the states of each property (other than the primitive types) to Unchanged or Modified in the context. Below is some

In my model I've got a bunch of domain objects. Now I'm having a problem when trying to update a User-object. The User has a foreignkey relation to the Role object. When I update the User-object without changeing the foreignkey value (FkRoleId) it all works fine. But when I change the role for the current user I want to update I get the error: A referential integrity constraint violation occurred: The property values that define the referential constraints are not consistent between principal and dependent objects in the relationship. Here's how I update my user-object: public void Update(User

This post has been noted So has this one On my dev machine I am trying to recreate my database using update-database from package manager console. I believe I have followed the instructions in the posts cited above. I get this error message: A file activation error occurred. The physical file name '\WRDatabase.mdf' may be incorrect. Diagnose and correct additional errors, and retry the operation. CREATE DATABASE failed. Some file names listed could not be created. Check related errors. The command I am running is: update-database -ConfigurationTypeName WRConfiguration -ConnectionStringName

I'm looking for a way to execute a query while a TransactionScope is alive, and ignore the TransactionScope - basically, I want to execute this particular query no matter what. I'm using EF code-first, and the way the application is designed, a new data context is opened many times throughout a single call, each with its own changes, and all of those are contained within a single TransactionScope, which has Complete() called at the end assuming no failures. Inside of the context we've overridden SaveChanges so that if any exception happens on base.SaveChanges() , we can catch it and log to the

I have been using EF migrations for some time now and have more than 100 migration files in my project. I would like to consolidate these into a single migration before moving forward - ie I want to replace the existing InitialCreate migration with a new version that takes all my subsequent changes into account so I can then delete all the other migration files. I do this very easily if I am not concerned with losing all the data in the DB, but I am. How can I achieve this whilst keeping all data intact and also retaining the ability to recreate the database from scratch (without data) by just