VS 2010数据库ORM插件

Question

I am ac# business developer, not a DBA nor a Database Developer. I have fair notions & skills, but I love straightforward tools to unburden the load of simple database modeling and creating quick c# DALs so I can focus on business logic.

I have been using Telerik ORM and AgileFX ORM (pic below)
Both have nice VS2010 plugins, but the first is not free, and the latter is not actively maintained, and has some weird annoying modeling bugs from time to time (though it fits exactly my plain-and-simple needs)

What free easy plug-and-play tools would you advice that could meet my expectations ? I am using SQL Server, DB Scheme is already set. I just need to import & create a Data Access Layer for it.

Edit :
As pointed out by an answer, I feel a bit stupid using Tier Application when there are built-in tools as Linq-to-SQL. Nice tutorial here

Answer 1

实体框架和Linq-to-SQL都内置于Visual Studio中。

Answer 2

Telerik OpenAccess ORM actually has a free version that you can use with SQL Server (and many other databases) with almost no limitations.

For the most part you shouldn't see any differences.