我的电子格式相当庞大。 1. 导言 客户希望更新模型,以利用4版的外国钥匙特征。
是否有什么办法/工具可以轻松地将ef v1模型转换为ef v4?
You can just change the Target Framework from .NET 3.5 to .NET 4.0, and the model will be automatically converted.
However, if you need EF v4 features like Referential Constraints, you should recreate the model from database.
after converting the project to target .net 4, If your using the ef 4.1 code fist, use this tool to recreate the entity classes.
http://blogs.msdn.com/b/adonet/archive/05/18/ef-power-tools-ctp1-released.aspx”rel=“nofollow”>http://blogs.msdn.com/b/adonet/archive/05/18/ef-power-tools-ctp1-released.aspx
Im sure you are already aware that having an extremely large edmx model has its disadvantages. If its not too late, use this chance to move to ef 4.1 code first and leverage the poco classes to give you more control over your entities..
My experiences have proven getting away from the edmx and moving to code first as early as possible pays off quickly. You just have to ask your self the question, is the time required to retest all the Data Access Layer, worth the investment for your project.
uck
I have been trying to get the Entity Framework to work in my web application using MySQL. It works fine on my local pc, but doesn t work when I put it on the server. Since the server is a shared ...
I am using the Entity Framework with SQL Server. I have a many to many relationship between 2 tables. I have created a join table with just the primary key fields of the 2 tables. In the designer, the ...
I am in the process of developing a desktop application that needs a database. The application is currently targeted to SQL Express 2005 and works wonderfully. However, I m not crazy about having ...
I am using the ADO entity framework for the first time and am not sure of the best way of inserting db recored that contain foreign keys. this is the code that i am using, I would appreciate any ...
I have a table called ASB and a table called PeopleInvolved. There is a junction table called PeopleInvolved_ASB which simply contains an ASBID and a PeopleInvolvedID column. The columns act as a ...
I m using ASP.NET MVC and Entity Framework. I m going to pass a complex entity to the client side and allow the user to modify it, and post it back to the controller. But I don t know how to do that ...
I run this code: var cos = from k in _db.klienci_do_trasy where k.klient_id == 5 select k; but the query send to database is: SELECT * FROM `klienci_do_trasy` LIMIT 0, 30 why is it for, there ...
I have two EF entities. One has a property called HouseNumber. The other has two properties, one called StartHouseNumber and one called EndHouseNumber. I want to create a many to many association ...
