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
Related
I have a Data Access Layer solution built in Visual Studio 2010. It uses Entity Data Model (.edmx files) to create object models of the data.
It is built with .Net 3.5 framework so I assume this is also version 3.5 of Entity Framework?
We use a number of TVFs to return datasets and unfortunately EF 3.5 does not provide access to TVFs. So we have has to build tsql views that call those TVFs.
Is it possible to upgrade this solution to EF 6 and use TVFs? What are the steps involved?
Microsoft has release a guide to do. You find it here:
https://msdn.microsoft.com/en-us/data/upgradeef6.aspx
It involves getting the latest assemblies and do some modifications in order to run. It seems upgrading from an older version is a little harder than from a new version.
I am trying to upgrade a big data project from EF 5 to EF 6. But when I run the code generation in EF6 tool the references to the related tables are no longer there.
So the following line of code no longer works.
dbTradeAllocation.ChargeTypeReference.EntityKey = new EntityKey("ICEEntities.SystemData", "ID", TradeAllocation.ChargeType);
Does anyone know if EntityKeys are still supported in EF6 ?
Thanks Paul
EntityKey is supported in EF6. However you cannot run EF5 code generation in EF6 - it won't work since there were changes in namespaces. I touched a little bit on this in my blog post about changes to EF Tooling in VS2013 - you can find the blog post here. If you want to use EntityObject/ObjectContext entities in EF6 you need to use EntityObject generator for EF6 which you can get from VS Gallery (note it requires .NET Framework 4.5 on the dev box).
We have some code that utilizes the EntityStoreSchemaGenerator to auto-generate an entity model from a database.The code is based on the EdmGen2 code from here:
http://archive.msdn.microsoft.com/EdmGen2/Release/ProjectReleases.aspx?ReleaseId=4216
This has worked well in previous versions of the EntityFramework, However; in EF 6.0.1 the code no longer compiles.
It seems that the support for generating models on the fly has been removed in the latest EF version. Can anyone confirm this?
Is there an alternative solution to generate the model classes on the fly, from code, available in EF 6.0?
I currently have a project using EF 1 (.NET 3.5) and would like to move it to the latest and greatest EF version.
I am actually quite happy with the feature set of EF1. The main reason, I want to do this is because I'm moving my frontend from webforms (.NET 3.5) to ASP.NET MVC 3 using Razor as the viewing engine.
I know I can simply change the target framework from 3.5 to 4. But usually these simple upgrade solutions usually result in problems at a later stage. e.g. is there still legacy code in the model? Would I be loosing functionality?
After the migration:
The migration went really smooth. No hickups whatsoever. Simply upgrade the project and your done.
Someone has an answer to this missing feature in Entity Framework. Does anyone have a solution to the missing Contains method in Entity Framework that works? I've tried a number of those on here and through Google, but none of them seem to actually work.
You may consider using EF 4.0 it's implemented there also StartsWith, EndsWith and many others.
ADO.NET Blog
As it was already answered, Entity Framework 4.0 Beta 2 has support for this method, but it requires Visual Studio 2010 Beta 2 to be downloaded.
In Visual Studio 2008 SP1 you can either use manual LINQ expressions construction, like it is described here, or Entity SQL, like we have already recommended here.