Layered approach in VB.Net

[Nitha]

Hello Friends
I am very new to layered approach in vb.net.I would appreciate if
anyone can give a clear picture of it with good example.
Thanks
Nitha

[Raghupathi Kamuni]

Concepts

 

N-Layer

http://msdn.microsoft.com/en-us/library/ms978678.aspx

3-Layer

http://msdn.microsoft.com/en-us/library/ms978689.aspx

 

Samples

http://msdn.microsoft.com/en-us/library/aa479070.aspx

http://www.codeplex.com/LayerSample

http://www.codeproject.com/KB/cs/Three_Layer_Architecture.aspx
 

[Gunawan Hadikusumo]

Data Layer      -----> Core  ----->CRUD ( Create, Read, Update and Delete) ---> Stored Procedures

 

                     ------> API   -

 

Business Layer  ------> Framework & web services

 

Presentation Layer ----> Form and Web Form

 

that's what i got. Hope it would help you.

[Sunilsingh]

Hi Raghu,

                In 3 layer application we have 

1 Presentation layer : where u do designing type of stuff (eg the web page)

2 data logic Layer : this is the layer where you write you logic of how the your application is going to interact with the database ( eg you will write code for executenonquery here)

3 .Business logic : In this intermediate layer  between  presentation layer and Data Logic layer . In this layer you write the business logic .   Eg ( you write some functions for login like verifyuser() in business logic . you call this function from button click event of presentation layer and from function of verifyuser() in business logic you call function executenonquery() in  datalogic)

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Thanks and Regards
Sunilsingh Bhadoria
Cell Number: +91 9922755668