EF N-TIER

Question

Almost every example/sample that I see uses EF in a one tier type scenario where the Database/UI is mixed. Several of the featires that EF provides stop working (like track changes) when an application for instance uses a WCF layer that is only allowed to access the database.

I am just wondering whether mixing databse/UI code in the same layer is typical of real world applications ? Thanks

 

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hoon

Answer 1

 

Hi Hoon1234,

 

Thanks for your question.

I don't think it is true, one tier application is just used to show new features or how to use EF. If you are design a project, 3-tier architecture is good. EF can be DAL, I think POCO is good to handle this.

The similar questions have bee n asked in our forum, you can refer their relay, I'd like to give some links:

http://social.msdn.microsoft.com/forums/en-us/adodotnetentityframework/thread/1ADADBCE-5706-44F4-9002-8C6E5220E790

http://social.msdn.microsoft.com/Forums/en-US/adodotnetentityframework/thread/51767b9e-5636-4695-b6fb-e5c3a7cea8e9

http://social.msdn.microsoft.com/Forums/en-US/adodotnetentityframework/thread/72ce5324-66a0-479f-aacd-66eff984e620

http://social.msdn.microsoft.com/forums/en-us/adodotnetentityframework/thread/82089E8F-F0AD-4F8E-8175-BEDB6BFA5E61

 

Have a nice day.

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Alan Chen[MSFT]
MSDN Community Support | Feedback to us
Get or Request Code Sample from Microsoft
Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Answer 2

Hi Hoon1234,

 I am writing to check the status of the issue on your side.  Would you mind letting us know the result of the suggestions? 
 
If you need further assistance, please feel free to let me know.   I will be more than happy to be of assistance.

Have a nice day.

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Alan Chen[MSFT]
MSDN Community Support | Feedback to us
Get or Request Code Sample from Microsoft
Please remember to mark the replies as answers if they help and unmark them if they provide no help.

Answer 3

Hi Hoon1234,

you can check following link...

It may solve your problem.

http://diegworld.blogspot.com/2011/01/building-n-tier-applications-with.html

 

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Hasibul Haque, MCTS http://blog.e-rains.com