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Building N-Tier Applications in Visual Studio 2008

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In this in interview John Stallo, a Program Manager on the Visual Basic Team, talks about WCF and simple N-Tier applications. He talks about a specific architecture scenario and some of the pain points we have building n-tier applications today. He then walks us through the improvements made in the DataSet Designer that physically separates the data access from the structure and validation code and then quickly creates a WCF service and a client that demonstrates this architecture.

Here's the step-by-step walkthrough of what John demonstrates. 

0:00 – 1:33

Intro

1:33

Architecture discussion

6:30

N-tier project layout

7:15

Separating data access code (TableAdapters) from the structure (DataSet)

10:36

Adding validation code

12:55

Creating the WCF service

15:31

Adding the service reference on the client and reusing types

19:17

Databinding to the client form and calling the service

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